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Finding the Fourth Proportional to 325,839.60, 488,759.40 and 115,498.80

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Solution

The fourth proportional to 325,839.60, 488,759.40 and 115,498.80 is: 173,248.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    325,839.60 : 488,759.40 = 115,498.80 : x
  2. Step 2: Convert to fraction form
    325,839.60/488,759.40 = 115,498.80/x
  3. Step 3: Cross multiply
    325,839.60x = 488,759.40 × 115,498.80
  4. Step 4: Simplify right side
    325,839.60x = 56,451,124,188.72
  5. Step 5: Solve for x
    x = 56,451,124,188.72/325,839.60
  6. Step 6: Final answer
    x = 173,248.20

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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.