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Finding the Fourth Proportional to 376,528.97, 519,613.59 and 206,766.65

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Solution

The fourth proportional to 376,528.97, 519,613.59 and 206,766.65 is: 285,339.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    376,528.97 : 519,613.59 = 206,766.65 : x
  2. Step 2: Convert to fraction form
    376,528.97/519,613.59 = 206,766.65/x
  3. Step 3: Cross multiply
    376,528.97x = 519,613.59 × 206,766.65
  4. Step 4: Simplify right side
    376,528.97x = 107,438,761,298.77
  5. Step 5: Solve for x
    x = 107,438,761,298.77/376,528.97
  6. Step 6: Final answer
    x = 285,339.96

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.