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Finding the Fourth Proportional to 247,447.10, 371,134.20 and 69,972.06

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Solution

The fourth proportional to 247,447.10, 371,134.20 and 69,972.06 is: 104,947.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,447.10 : 371,134.20 = 69,972.06 : x
  2. Step 2: Convert to fraction form
    247,447.10/371,134.20 = 69,972.06/x
  3. Step 3: Cross multiply
    247,447.10x = 371,134.20 × 69,972.06
  4. Step 4: Simplify right side
    247,447.10x = 25,969,024,510.45
  5. Step 5: Solve for x
    x = 25,969,024,510.45/247,447.10
  6. Step 6: Final answer
    x = 104,947.78

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1.5x scale

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.