Home / 152.50-313

Finding the Third Proportional to 152.50 and 313

Calculator

Solution

The third proportional to 152.50 and 313 is: 642.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    152.50 : 313 = 313 : x
  2. Step 2: Convert to fraction form
    152.50/313 = 313/x
  3. Step 3: Cross multiply
    152.50x = 313 × 313
  4. Step 4: Simplify right side
    152.50x = 97,969
  5. Step 5: Solve for x
    x = 97,969/152.50
  6. Step 6: Final answer
    x = 642.42

Related Problems

Find third proportional to 76.25 and 156.50
Half scale
Find third proportional to 305 and 626
Double scale
Find third proportional to 155 and 317
Similar ratio
Find third proportional to 228.75 and 469.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.05) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.