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Finding the Fourth Proportional to 192,618.72, 288,934.08 and 52,380.32

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Solution

The fourth proportional to 192,618.72, 288,934.08 and 52,380.32 is: 78,572.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,618.72 : 288,934.08 = 52,380.32 : x
  2. Step 2: Convert to fraction form
    192,618.72/288,934.08 = 52,380.32/x
  3. Step 3: Cross multiply
    192,618.72x = 288,934.08 × 52,380.32
  4. Step 4: Simplify right side
    192,618.72x = 15,134,459,569.31
  5. Step 5: Solve for x
    x = 15,134,459,569.31/192,618.72
  6. Step 6: Final answer
    x = 78,572.11

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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.