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Finding the Fourth Proportional to 250,337.76, 345,463.88 and 135,613.81

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Solution

The fourth proportional to 250,337.76, 345,463.88 and 135,613.81 is: 187,145.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    250,337.76 : 345,463.88 = 135,613.81 : x
  2. Step 2: Convert to fraction form
    250,337.76/345,463.88 = 135,613.81/x
  3. Step 3: Cross multiply
    250,337.76x = 345,463.88 × 135,613.81
  4. Step 4: Simplify right side
    250,337.76x = 46,849,672,984.18
  5. Step 5: Solve for x
    x = 46,849,672,984.18/250,337.76
  6. Step 6: Final answer
    x = 187,145.85

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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.