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Finding the Fourth Proportional to 325,540.60, 488,310.90 and 199,569.40

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Solution

The fourth proportional to 325,540.60, 488,310.90 and 199,569.40 is: 299,354.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    325,540.60 : 488,310.90 = 199,569.40 : x
  2. Step 2: Convert to fraction form
    325,540.60/488,310.90 = 199,569.40/x
  3. Step 3: Cross multiply
    325,540.60x = 488,310.90 × 199,569.40
  4. Step 4: Simplify right side
    325,540.60x = 97,451,913,326.46
  5. Step 5: Solve for x
    x = 97,451,913,326.46/325,540.60
  6. Step 6: Final answer
    x = 299,354.10

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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.