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Finding the Fourth Proportional to 242,079.40, 363,464.70 and 137,103.40

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Solution

The fourth proportional to 242,079.40, 363,464.70 and 137,103.40 is: 205,850.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    242,079.40 : 363,464.70 = 137,103.40 : x
  2. Step 2: Convert to fraction form
    242,079.40/363,464.70 = 137,103.40/x
  3. Step 3: Cross multiply
    242,079.40x = 363,464.70 × 137,103.40
  4. Step 4: Simplify right side
    242,079.40x = 49,832,246,149.98
  5. Step 5: Solve for x
    x = 49,832,246,149.98/242,079.40
  6. Step 6: Final answer
    x = 205,850.83

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1.5x scale

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.