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Finding the Fourth Proportional to 285,248.76, 427,855.86 and 74,882.04

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Solution

The fourth proportional to 285,248.76, 427,855.86 and 74,882.04 is: 112,318.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,248.76 : 427,855.86 = 74,882.04 : x
  2. Step 2: Convert to fraction form
    285,248.76/427,855.86 = 74,882.04/x
  3. Step 3: Cross multiply
    285,248.76x = 427,855.86 × 74,882.04
  4. Step 4: Simplify right side
    285,248.76x = 32,038,719,622.75
  5. Step 5: Solve for x
    x = 32,038,719,622.75/285,248.76
  6. Step 6: Final answer
    x = 112,318.52

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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.