Home / 438,101.90-657,176.76-138,560.12

Finding the Fourth Proportional to 438,101.90, 657,176.76 and 138,560.12

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Solution

The fourth proportional to 438,101.90, 657,176.76 and 138,560.12 is: 207,847.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,101.90 : 657,176.76 = 138,560.12 : x
  2. Step 2: Convert to fraction form
    438,101.90/657,176.76 = 138,560.12/x
  3. Step 3: Cross multiply
    438,101.90x = 657,176.76 × 138,560.12
  4. Step 4: Simplify right side
    438,101.90x = 91,058,487,440.93
  5. Step 5: Solve for x
    x = 91,058,487,440.93/438,101.90
  6. Step 6: Final answer
    x = 207,847.74

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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.