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Finding the Fourth Proportional to 359,679.56, 496,357.85 and 198,534.68

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Solution

The fourth proportional to 359,679.56, 496,357.85 and 198,534.68 is: 273,977.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    359,679.56 : 496,357.85 = 198,534.68 : x
  2. Step 2: Convert to fraction form
    359,679.56/496,357.85 = 198,534.68/x
  3. Step 3: Cross multiply
    359,679.56x = 496,357.85 × 198,534.68
  4. Step 4: Simplify right side
    359,679.56x = 98,544,246,915.24
  5. Step 5: Solve for x
    x = 98,544,246,915.24/359,679.56
  6. Step 6: Final answer
    x = 273,977.89

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.