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Finding the Fourth Proportional to 342,001.55, 479,983.15 and 342,001.55

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Solution

The fourth proportional to 342,001.55, 479,983.15 and 342,001.55 is: 479,983.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    342,001.55 : 479,983.15 = 342,001.55 : x
  2. Step 2: Convert to fraction form
    342,001.55/479,983.15 = 342,001.55/x
  3. Step 3: Cross multiply
    342,001.55x = 479,983.15 × 342,001.55
  4. Step 4: Simplify right side
    342,001.55x = 164,154,981,273.88
  5. Step 5: Solve for x
    x = 164,154,981,273.88/342,001.55
  6. Step 6: Final answer
    x = 479,983.15

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.