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Finding the Fourth Proportional to 345,307.92, 476,517.66 and 192,345.72

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Solution

The fourth proportional to 345,307.92, 476,517.66 and 192,345.72 is: 265,433.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    345,307.92 : 476,517.66 = 192,345.72 : x
  2. Step 2: Convert to fraction form
    345,307.92/476,517.66 = 192,345.72/x
  3. Step 3: Cross multiply
    345,307.92x = 476,517.66 × 192,345.72
  4. Step 4: Simplify right side
    345,307.92x = 91,656,132,405.42
  5. Step 5: Solve for x
    x = 91,656,132,405.42/345,307.92
  6. Step 6: Final answer
    x = 265,433.04

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.