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Finding the Fourth Proportional to 185,395.52, 278,175.96 and 85,502

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Solution

The fourth proportional to 185,395.52, 278,175.96 and 85,502 is: 128,291.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,395.52 : 278,175.96 = 85,502 : x
  2. Step 2: Convert to fraction form
    185,395.52/278,175.96 = 85,502/x
  3. Step 3: Cross multiply
    185,395.52x = 278,175.96 × 85,502
  4. Step 4: Simplify right side
    185,395.52x = 23,784,600,931.92
  5. Step 5: Solve for x
    x = 23,784,600,931.92/185,395.52
  6. Step 6: Final answer
    x = 128,291.13

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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.