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Finding the Fourth Proportional to 288,201.60, 432,367.20 and 88,531.20

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Solution

The fourth proportional to 288,201.60, 432,367.20 and 88,531.20 is: 132,816.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,201.60 : 432,367.20 = 88,531.20 : x
  2. Step 2: Convert to fraction form
    288,201.60/432,367.20 = 88,531.20/x
  3. Step 3: Cross multiply
    288,201.60x = 432,367.20 × 88,531.20
  4. Step 4: Simplify right side
    288,201.60x = 38,277,987,056.64
  5. Step 5: Solve for x
    x = 38,277,987,056.64/288,201.60
  6. Step 6: Final answer
    x = 132,816.71

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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.