Home / 438,400.50-657,945.27-225,159.90

Finding the Fourth Proportional to 438,400.50, 657,945.27 and 225,159.90

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Solution

The fourth proportional to 438,400.50, 657,945.27 and 225,159.90 is: 337,916.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,400.50 : 657,945.27 = 225,159.90 : x
  2. Step 2: Convert to fraction form
    438,400.50/657,945.27 = 225,159.90/x
  3. Step 3: Cross multiply
    438,400.50x = 657,945.27 × 225,159.90
  4. Step 4: Simplify right side
    438,400.50x = 148,142,891,198.67
  5. Step 5: Solve for x
    x = 148,142,891,198.67/438,400.50
  6. Step 6: Final answer
    x = 337,916.79

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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.