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Finding the Fourth Proportional to 285,124, 427,686 and 88,132

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Solution

The fourth proportional to 285,124, 427,686 and 88,132 is: 132,198

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,124 : 427,686 = 88,132 : x
  2. Step 2: Convert to fraction form
    285,124/427,686 = 88,132/x
  3. Step 3: Cross multiply
    285,124x = 427,686 × 88,132
  4. Step 4: Simplify right side
    285,124x = 37,692,822,552
  5. Step 5: Solve for x
    x = 37,692,822,552/285,124
  6. Step 6: Final answer
    x = 132,198

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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.