Home / 292,432.95-438,691.28-90,046.18

Finding the Fourth Proportional to 292,432.95, 438,691.28 and 90,046.18

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Solution

The fourth proportional to 292,432.95, 438,691.28 and 90,046.18 is: 135,082.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    292,432.95 : 438,691.28 = 90,046.18 : x
  2. Step 2: Convert to fraction form
    292,432.95/438,691.28 = 90,046.18/x
  3. Step 3: Cross multiply
    292,432.95x = 438,691.28 × 90,046.18
  4. Step 4: Simplify right side
    292,432.95x = 39,502,474,061.44
  5. Step 5: Solve for x
    x = 39,502,474,061.44/292,432.95
  6. Step 6: Final answer
    x = 135,082.16

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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.