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Finding the Fourth Proportional to 258,522.80, 386,862.60 and 179,265.20

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Solution

The fourth proportional to 258,522.80, 386,862.60 and 179,265.20 is: 268,258.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,522.80 : 386,862.60 = 179,265.20 : x
  2. Step 2: Convert to fraction form
    258,522.80/386,862.60 = 179,265.20/x
  3. Step 3: Cross multiply
    258,522.80x = 386,862.60 × 179,265.20
  4. Step 4: Simplify right side
    258,522.80x = 69,351,001,361.52
  5. Step 5: Solve for x
    x = 69,351,001,361.52/258,522.80
  6. Step 6: Final answer
    x = 268,258.74

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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.