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Finding the Fourth Proportional to 247,462.08, 371,247.72 and 105,299.76

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Solution

The fourth proportional to 247,462.08, 371,247.72 and 105,299.76 is: 157,972.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,462.08 : 371,247.72 = 105,299.76 : x
  2. Step 2: Convert to fraction form
    247,462.08/371,247.72 = 105,299.76/x
  3. Step 3: Cross multiply
    247,462.08x = 371,247.72 × 105,299.76
  4. Step 4: Simplify right side
    247,462.08x = 39,092,295,816.55
  5. Step 5: Solve for x
    x = 39,092,295,816.55/247,462.08
  6. Step 6: Final answer
    x = 157,972.87

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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.