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Finding the Fourth Proportional to 247,363.80, 371,142.90 and 97,578.60

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Solution

The fourth proportional to 247,363.80, 371,142.90 and 97,578.60 is: 146,406.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,363.80 : 371,142.90 = 97,578.60 : x
  2. Step 2: Convert to fraction form
    247,363.80/371,142.90 = 97,578.60/x
  3. Step 3: Cross multiply
    247,363.80x = 371,142.90 × 97,578.60
  4. Step 4: Simplify right side
    247,363.80x = 36,215,604,581.94
  5. Step 5: Solve for x
    x = 36,215,604,581.94/247,363.80
  6. Step 6: Final answer
    x = 146,406.24

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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.