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Finding the Fourth Proportional to 285,159.72, 427,834.35 and 95,638.62

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Solution

The fourth proportional to 285,159.72, 427,834.35 and 95,638.62 is: 143,489.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,159.72 : 427,834.35 = 95,638.62 : x
  2. Step 2: Convert to fraction form
    285,159.72/427,834.35 = 95,638.62/x
  3. Step 3: Cross multiply
    285,159.72x = 427,834.35 × 95,638.62
  4. Step 4: Simplify right side
    285,159.72x = 40,917,486,822.60
  5. Step 5: Solve for x
    x = 40,917,486,822.60/285,159.72
  6. Step 6: Final answer
    x = 143,489.71

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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.