Home / 282,902.17-390,397.20-155,577.76

Finding the Fourth Proportional to 282,902.17, 390,397.20 and 155,577.76

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Solution

The fourth proportional to 282,902.17, 390,397.20 and 155,577.76 is: 214,693.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,902.17 : 390,397.20 = 155,577.76 : x
  2. Step 2: Convert to fraction form
    282,902.17/390,397.20 = 155,577.76/x
  3. Step 3: Cross multiply
    282,902.17x = 390,397.20 × 155,577.76
  4. Step 4: Simplify right side
    282,902.17x = 60,737,119,934.29
  5. Step 5: Solve for x
    x = 60,737,119,934.29/282,902.17
  6. Step 6: Final answer
    x = 214,693.02

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.