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Finding the Fourth Proportional to 250,624.28, 345,861.96 and 137,447.84

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Solution

The fourth proportional to 250,624.28, 345,861.96 and 137,447.84 is: 189,678.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    250,624.28 : 345,861.96 = 137,447.84 : x
  2. Step 2: Convert to fraction form
    250,624.28/345,861.96 = 137,447.84/x
  3. Step 3: Cross multiply
    250,624.28x = 345,861.96 × 137,447.84
  4. Step 4: Simplify right side
    250,624.28x = 47,537,979,340.17
  5. Step 5: Solve for x
    x = 47,537,979,340.17/250,624.28
  6. Step 6: Final answer
    x = 189,678.27

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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.