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Finding the Fourth Proportional to 325,539.78, 488,625.30 and 157,178.88

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Solution

The fourth proportional to 325,539.78, 488,625.30 and 157,178.88 is: 235,920.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    325,539.78 : 488,625.30 = 157,178.88 : x
  2. Step 2: Convert to fraction form
    325,539.78/488,625.30 = 157,178.88/x
  3. Step 3: Cross multiply
    325,539.78x = 488,625.30 × 157,178.88
  4. Step 4: Simplify right side
    325,539.78x = 76,801,577,393.66
  5. Step 5: Solve for x
    x = 76,801,577,393.66/325,539.78
  6. Step 6: Final answer
    x = 235,920.71

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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.