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Finding the Fourth Proportional to 247,058.30, 370,587.45 and 80,863.10

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Solution

The fourth proportional to 247,058.30, 370,587.45 and 80,863.10 is: 121,294.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,058.30 : 370,587.45 = 80,863.10 : x
  2. Step 2: Convert to fraction form
    247,058.30/370,587.45 = 80,863.10/x
  3. Step 3: Cross multiply
    247,058.30x = 370,587.45 × 80,863.10
  4. Step 4: Simplify right side
    247,058.30x = 29,966,850,028.10
  5. Step 5: Solve for x
    x = 29,966,850,028.10/247,058.30
  6. Step 6: Final answer
    x = 121,294.65

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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.