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Finding the Fourth Proportional to 247,720.43, 371,579.96 and 70,228.97

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Solution

The fourth proportional to 247,720.43, 371,579.96 and 70,228.97 is: 105,343.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,720.43 : 371,579.96 = 70,228.97 : x
  2. Step 2: Convert to fraction form
    247,720.43/371,579.96 = 70,228.97/x
  3. Step 3: Cross multiply
    247,720.43x = 371,579.96 × 70,228.97
  4. Step 4: Simplify right side
    247,720.43x = 26,095,679,269.64
  5. Step 5: Solve for x
    x = 26,095,679,269.64/247,720.43
  6. Step 6: Final answer
    x = 105,343.27

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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.