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Finding the Fourth Proportional to 247,147.71, 370,718.11 and 97,389.30

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Solution

The fourth proportional to 247,147.71, 370,718.11 and 97,389.30 is: 146,082.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,147.71 : 370,718.11 = 97,389.30 : x
  2. Step 2: Convert to fraction form
    247,147.71/370,718.11 = 97,389.30/x
  3. Step 3: Cross multiply
    247,147.71x = 370,718.11 × 97,389.30
  4. Step 4: Simplify right side
    247,147.71x = 36,103,978,194.34
  5. Step 5: Solve for x
    x = 36,103,978,194.34/247,147.71
  6. Step 6: Final answer
    x = 146,082.59

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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.