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Finding the Fourth Proportional to 435,221.64, 652,900.50 and 135,641.88

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Solution

The fourth proportional to 435,221.64, 652,900.50 and 135,641.88 is: 203,484.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    435,221.64 : 652,900.50 = 135,641.88 : x
  2. Step 2: Convert to fraction form
    435,221.64/652,900.50 = 135,641.88/x
  3. Step 3: Cross multiply
    435,221.64x = 652,900.50 × 135,641.88
  4. Step 4: Simplify right side
    435,221.64x = 88,560,651,272.94
  5. Step 5: Solve for x
    x = 88,560,651,272.94/435,221.64
  6. Step 6: Final answer
    x = 203,484.03

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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.