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Finding the Fourth Proportional to 256,044.65, 384,126.71 and 87,566.27

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Solution

The fourth proportional to 256,044.65, 384,126.71 and 87,566.27 is: 131,369.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,044.65 : 384,126.71 = 87,566.27 : x
  2. Step 2: Convert to fraction form
    256,044.65/384,126.71 = 87,566.27/x
  3. Step 3: Cross multiply
    256,044.65x = 384,126.71 × 87,566.27
  4. Step 4: Simplify right side
    256,044.65x = 33,636,540,843.61
  5. Step 5: Solve for x
    x = 33,636,540,843.61/256,044.65
  6. Step 6: Final answer
    x = 131,369.83

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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.