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Finding the Fourth Proportional to 342,166.28, 513,238.73 and 142,481.61

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Solution

The fourth proportional to 342,166.28, 513,238.73 and 142,481.61 is: 213,717.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    342,166.28 : 513,238.73 = 142,481.61 : x
  2. Step 2: Convert to fraction form
    342,166.28/513,238.73 = 142,481.61/x
  3. Step 3: Cross multiply
    342,166.28x = 513,238.73 × 142,481.61
  4. Step 4: Simplify right side
    342,166.28x = 73,127,079,852.35
  5. Step 5: Solve for x
    x = 73,127,079,852.35/342,166.28
  6. Step 6: Final answer
    x = 213,717.96

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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.