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Finding the Fourth Proportional to 242,788.70, 364,073.70 and 92,979.20

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Solution

The fourth proportional to 242,788.70, 364,073.70 and 92,979.20 is: 139,426.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    242,788.70 : 364,073.70 = 92,979.20 : x
  2. Step 2: Convert to fraction form
    242,788.70/364,073.70 = 92,979.20/x
  3. Step 3: Cross multiply
    242,788.70x = 364,073.70 × 92,979.20
  4. Step 4: Simplify right side
    242,788.70x = 33,851,281,367.04
  5. Step 5: Solve for x
    x = 33,851,281,367.04/242,788.70
  6. Step 6: Final answer
    x = 139,426.92

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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.