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Finding the Fourth Proportional to 247,471.48, 371,207.10 and 89,699.68

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Solution

The fourth proportional to 247,471.48, 371,207.10 and 89,699.68 is: 134,549.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,471.48 : 371,207.10 = 89,699.68 : x
  2. Step 2: Convert to fraction form
    247,471.48/371,207.10 = 89,699.68/x
  3. Step 3: Cross multiply
    247,471.48x = 371,207.10 × 89,699.68
  4. Step 4: Simplify right side
    247,471.48x = 33,297,158,083.73
  5. Step 5: Solve for x
    x = 33,297,158,083.73/247,471.48
  6. Step 6: Final answer
    x = 134,549.48

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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.