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Finding the Fourth Proportional to 247,301.10, 371,012.40 and 69,805.80

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Solution

The fourth proportional to 247,301.10, 371,012.40 and 69,805.80 is: 104,725.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,301.10 : 371,012.40 = 69,805.80 : x
  2. Step 2: Convert to fraction form
    247,301.10/371,012.40 = 69,805.80/x
  3. Step 3: Cross multiply
    247,301.10x = 371,012.40 × 69,805.80
  4. Step 4: Simplify right side
    247,301.10x = 25,898,817,391.92
  5. Step 5: Solve for x
    x = 25,898,817,391.92/247,301.10
  6. Step 6: Final answer
    x = 104,725.85

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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.