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Finding the Fourth Proportional to 199,517.64, 299,325.26 and 66,397.64

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Solution

The fourth proportional to 199,517.64, 299,325.26 and 66,397.64 is: 99,612.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,517.64 : 299,325.26 = 66,397.64 : x
  2. Step 2: Convert to fraction form
    199,517.64/299,325.26 = 66,397.64/x
  3. Step 3: Cross multiply
    199,517.64x = 299,325.26 × 66,397.64
  4. Step 4: Simplify right side
    199,517.64x = 19,874,490,856.39
  5. Step 5: Solve for x
    x = 19,874,490,856.39/199,517.64
  6. Step 6: Final answer
    x = 99,612.70

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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.