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Finding the Fourth Proportional to 342,616.32, 513,921.62 and 267,799.40

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Solution

The fourth proportional to 342,616.32, 513,921.62 and 267,799.40 is: 401,696.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    342,616.32 : 513,921.62 = 267,799.40 : x
  2. Step 2: Convert to fraction form
    342,616.32/513,921.62 = 267,799.40/x
  3. Step 3: Cross multiply
    342,616.32x = 513,921.62 × 267,799.40
  4. Step 4: Simplify right side
    342,616.32x = 137,627,901,483.03
  5. Step 5: Solve for x
    x = 137,627,901,483.03/342,616.32
  6. Step 6: Final answer
    x = 401,696.86

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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.