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Finding the Fourth Proportional to 250,694.96, 375,921.48 and 145,540.40

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Solution

The fourth proportional to 250,694.96, 375,921.48 and 145,540.40 is: 218,240.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    250,694.96 : 375,921.48 = 145,540.40 : x
  2. Step 2: Convert to fraction form
    250,694.96/375,921.48 = 145,540.40/x
  3. Step 3: Cross multiply
    250,694.96x = 375,921.48 × 145,540.40
  4. Step 4: Simplify right side
    250,694.96x = 54,711,762,567.79
  5. Step 5: Solve for x
    x = 54,711,762,567.79/250,694.96
  6. Step 6: Final answer
    x = 218,240.38

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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.