Home / 307,414-424,231.32-173,278

Finding the Fourth Proportional to 307,414, 424,231.32 and 173,278

Calculator

Solution

The fourth proportional to 307,414, 424,231.32 and 173,278 is: 239,123.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    307,414 : 424,231.32 = 173,278 : x
  2. Step 2: Convert to fraction form
    307,414/424,231.32 = 173,278/x
  3. Step 3: Cross multiply
    307,414x = 424,231.32 × 173,278
  4. Step 4: Simplify right side
    307,414x = 73,509,954,666.96
  5. Step 5: Solve for x
    x = 73,509,954,666.96/307,414
  6. Step 6: Final answer
    x = 239,123.64

Related Problems

Find fourth proportional to 153,707, 212,115.66 and 86,639
Half scale
Find fourth proportional to 614,828, 848,462.64 and 346,556
Double scale
Find fourth proportional to 307,415, 424,232.70 and 173,279
Similar ratio
Find fourth proportional to 461,121, 636,346.98 and 259,917
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.