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Finding the Fourth Proportional to 242,832.60, 364,151.70 and 84,979.80

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Solution

The fourth proportional to 242,832.60, 364,151.70 and 84,979.80 is: 127,435.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    242,832.60 : 364,151.70 = 84,979.80 : x
  2. Step 2: Convert to fraction form
    242,832.60/364,151.70 = 84,979.80/x
  3. Step 3: Cross multiply
    242,832.60x = 364,151.70 × 84,979.80
  4. Step 4: Simplify right side
    242,832.60x = 30,945,538,635.66
  5. Step 5: Solve for x
    x = 30,945,538,635.66/242,832.60
  6. Step 6: Final answer
    x = 127,435.68

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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.