Home / 343.74-473.15-300

Finding the Fourth Proportional to 343.74, 473.15 and 300

Calculator

Solution

The fourth proportional to 343.74, 473.15 and 300 is: 412.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    343.74 : 473.15 = 300 : x
  2. Step 2: Convert to fraction form
    343.74/473.15 = 300/x
  3. Step 3: Cross multiply
    343.74x = 473.15 × 300
  4. Step 4: Simplify right side
    343.74x = 141,943.50
  5. Step 5: Solve for x
    x = 141,943.50/343.74
  6. Step 6: Final answer
    x = 412.94

Related Problems

Find fourth proportional to 171.87, 236.57 and 150
Half scale
Find fourth proportional to 687.48, 946.29 and 600
Double scale
Find fourth proportional to 344.74, 474.52 and 301
Similar ratio
Find fourth proportional to 515.61, 709.72 and 450
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.