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Finding the Fourth Proportional to 275,614.65, 413,421.98 and 88,645.05

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Solution

The fourth proportional to 275,614.65, 413,421.98 and 88,645.05 is: 132,967.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,614.65 : 413,421.98 = 88,645.05 : x
  2. Step 2: Convert to fraction form
    275,614.65/413,421.98 = 88,645.05/x
  3. Step 3: Cross multiply
    275,614.65x = 413,421.98 × 88,645.05
  4. Step 4: Simplify right side
    275,614.65x = 36,647,811,644.97
  5. Step 5: Solve for x
    x = 36,647,811,644.97/275,614.65
  6. Step 6: Final answer
    x = 132,967.58

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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.