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Finding the Fourth Proportional to 192,489.68, 265,510.59 and 123,469.91

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Solution

The fourth proportional to 192,489.68, 265,510.59 and 123,469.91 is: 170,308.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,489.68 : 265,510.59 = 123,469.91 : x
  2. Step 2: Convert to fraction form
    192,489.68/265,510.59 = 123,469.91/x
  3. Step 3: Cross multiply
    192,489.68x = 265,510.59 × 123,469.91
  4. Step 4: Simplify right side
    192,489.68x = 32,782,567,323.79
  5. Step 5: Solve for x
    x = 32,782,567,323.79/192,489.68
  6. Step 6: Final answer
    x = 170,308.19

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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.