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Finding the Fourth Proportional to 384,242.50, 576,366.99 and 134,924.50

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Solution

The fourth proportional to 384,242.50, 576,366.99 and 134,924.50 is: 202,387.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    384,242.50 : 576,366.99 = 134,924.50 : x
  2. Step 2: Convert to fraction form
    384,242.50/576,366.99 = 134,924.50/x
  3. Step 3: Cross multiply
    384,242.50x = 576,366.99 × 134,924.50
  4. Step 4: Simplify right side
    384,242.50x = 77,766,027,942.26
  5. Step 5: Solve for x
    x = 77,766,027,942.26/384,242.50
  6. Step 6: Final answer
    x = 202,387.89

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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.