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Finding the Fourth Proportional to 500,057.96, 750,125.21 and 215,755.25

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Solution

The fourth proportional to 500,057.96, 750,125.21 and 215,755.25 is: 323,649.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    500,057.96 : 750,125.21 = 215,755.25 : x
  2. Step 2: Convert to fraction form
    500,057.96/750,125.21 = 215,755.25/x
  3. Step 3: Cross multiply
    500,057.96x = 750,125.21 × 215,755.25
  4. Step 4: Simplify right side
    500,057.96x = 161,843,447,385.45
  5. Step 5: Solve for x
    x = 161,843,447,385.45/500,057.96
  6. Step 6: Final answer
    x = 323,649.38

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.