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Finding the Fourth Proportional to 250,328.56, 375,576.68 and 81,856.66

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Solution

The fourth proportional to 250,328.56, 375,576.68 and 81,856.66 is: 122,812.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    250,328.56 : 375,576.68 = 81,856.66 : x
  2. Step 2: Convert to fraction form
    250,328.56/375,576.68 = 81,856.66/x
  3. Step 3: Cross multiply
    250,328.56x = 375,576.68 × 81,856.66
  4. Step 4: Simplify right side
    250,328.56x = 30,743,452,189.41
  5. Step 5: Solve for x
    x = 30,743,452,189.41/250,328.56
  6. Step 6: Final answer
    x = 122,812.40

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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.