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Finding the Fourth Proportional to 185,399.52, 278,181.96 and 85,506

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Solution

The fourth proportional to 185,399.52, 278,181.96 and 85,506 is: 128,297.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,399.52 : 278,181.96 = 85,506 : x
  2. Step 2: Convert to fraction form
    185,399.52/278,181.96 = 85,506/x
  3. Step 3: Cross multiply
    185,399.52x = 278,181.96 × 85,506
  4. Step 4: Simplify right side
    185,399.52x = 23,786,226,671.76
  5. Step 5: Solve for x
    x = 23,786,226,671.76/185,399.52
  6. Step 6: Final answer
    x = 128,297.13

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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.