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Finding the Fourth Proportional to 359,339.60, 538,577.40 and 148,869.20

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Solution

The fourth proportional to 359,339.60, 538,577.40 and 148,869.20 is: 223,124.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    359,339.60 : 538,577.40 = 148,869.20 : x
  2. Step 2: Convert to fraction form
    359,339.60/538,577.40 = 148,869.20/x
  3. Step 3: Cross multiply
    359,339.60x = 538,577.40 × 148,869.20
  4. Step 4: Simplify right side
    359,339.60x = 80,177,586,676.08
  5. Step 5: Solve for x
    x = 80,177,586,676.08/359,339.60
  6. Step 6: Final answer
    x = 223,124.83

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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.