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Finding the Fourth Proportional to 359,338.60, 538,575.90 and 148,868.20

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Solution

The fourth proportional to 359,338.60, 538,575.90 and 148,868.20 is: 223,123.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    359,338.60 : 538,575.90 = 148,868.20 : x
  2. Step 2: Convert to fraction form
    359,338.60/538,575.90 = 148,868.20/x
  3. Step 3: Cross multiply
    359,338.60x = 538,575.90 × 148,868.20
  4. Step 4: Simplify right side
    359,338.60x = 80,176,824,796.38
  5. Step 5: Solve for x
    x = 80,176,824,796.38/359,338.60
  6. Step 6: Final answer
    x = 223,123.33

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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.