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Finding the Fourth Proportional to 425,680.68, 587,541.69 and 255,882

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Solution

The fourth proportional to 425,680.68, 587,541.69 and 255,882 is: 353,178.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    425,680.68 : 587,541.69 = 255,882 : x
  2. Step 2: Convert to fraction form
    425,680.68/587,541.69 = 255,882/x
  3. Step 3: Cross multiply
    425,680.68x = 587,541.69 × 255,882
  4. Step 4: Simplify right side
    425,680.68x = 150,341,342,720.58
  5. Step 5: Solve for x
    x = 150,341,342,720.58/425,680.68
  6. Step 6: Final answer
    x = 353,178.68

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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.