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Finding the Fourth Proportional to 250,105.76, 345,344.87 and 230,978.55

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Solution

The fourth proportional to 250,105.76, 345,344.87 and 230,978.55 is: 318,934.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    250,105.76 : 345,344.87 = 230,978.55 : x
  2. Step 2: Convert to fraction form
    250,105.76/345,344.87 = 230,978.55/x
  3. Step 3: Cross multiply
    250,105.76x = 345,344.87 × 230,978.55
  4. Step 4: Simplify right side
    250,105.76x = 79,767,256,167.65
  5. Step 5: Solve for x
    x = 79,767,256,167.65/250,105.76
  6. Step 6: Final answer
    x = 318,934.11

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1.5x scale

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.