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Finding the Fourth Proportional to 342,944.78, 473,288.72 and 207,011.79

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Solution

The fourth proportional to 342,944.78, 473,288.72 and 207,011.79 is: 285,691.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    342,944.78 : 473,288.72 = 207,011.79 : x
  2. Step 2: Convert to fraction form
    342,944.78/473,288.72 = 207,011.79/x
  3. Step 3: Cross multiply
    342,944.78x = 473,288.72 × 207,011.79
  4. Step 4: Simplify right side
    342,944.78x = 97,976,344,078.95
  5. Step 5: Solve for x
    x = 97,976,344,078.95/342,944.78
  6. Step 6: Final answer
    x = 285,691.32

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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.