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Finding the Fourth Proportional to 247,258.80, 370,839.60 and 81,046.80

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Solution

The fourth proportional to 247,258.80, 370,839.60 and 81,046.80 is: 121,554.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,258.80 : 370,839.60 = 81,046.80 : x
  2. Step 2: Convert to fraction form
    247,258.80/370,839.60 = 81,046.80/x
  3. Step 3: Cross multiply
    247,258.80x = 370,839.60 × 81,046.80
  4. Step 4: Simplify right side
    247,258.80x = 30,055,362,893.28
  5. Step 5: Solve for x
    x = 30,055,362,893.28/247,258.80
  6. Step 6: Final answer
    x = 121,554.27

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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.