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Finding the Fourth Proportional to 228,129.92, 342,195.62 and 85,937.03

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Solution

The fourth proportional to 228,129.92, 342,195.62 and 85,937.03 is: 128,905.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,129.92 : 342,195.62 = 85,937.03 : x
  2. Step 2: Convert to fraction form
    228,129.92/342,195.62 = 85,937.03/x
  3. Step 3: Cross multiply
    228,129.92x = 342,195.62 × 85,937.03
  4. Step 4: Simplify right side
    228,129.92x = 29,407,275,731.53
  5. Step 5: Solve for x
    x = 29,407,275,731.53/228,129.92
  6. Step 6: Final answer
    x = 128,905.83

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1.5x scale

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.