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Finding the Fourth Proportional to 230,432.78, 345,411.68 and 88,239.22

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Solution

The fourth proportional to 230,432.78, 345,411.68 and 88,239.22 is: 132,267.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    230,432.78 : 345,411.68 = 88,239.22 : x
  2. Step 2: Convert to fraction form
    230,432.78/345,411.68 = 88,239.22/x
  3. Step 3: Cross multiply
    230,432.78x = 345,411.68 × 88,239.22
  4. Step 4: Simplify right side
    230,432.78x = 30,478,855,917.36
  5. Step 5: Solve for x
    x = 30,478,855,917.36/230,432.78
  6. Step 6: Final answer
    x = 132,267.88

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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.