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Finding the Fourth Proportional to 325,560.60, 487,684.80 and 185,155.20

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Solution

The fourth proportional to 325,560.60, 487,684.80 and 185,155.20 is: 277,359.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    325,560.60 : 487,684.80 = 185,155.20 : x
  2. Step 2: Convert to fraction form
    325,560.60/487,684.80 = 185,155.20/x
  3. Step 3: Cross multiply
    325,560.60x = 487,684.80 × 185,155.20
  4. Step 4: Simplify right side
    325,560.60x = 90,297,376,680.96
  5. Step 5: Solve for x
    x = 90,297,376,680.96/325,560.60
  6. Step 6: Final answer
    x = 277,359.66

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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.