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Finding the Fourth Proportional to 207,644.95, 286,552.71 and 122,761.27

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Solution

The fourth proportional to 207,644.95, 286,552.71 and 122,761.27 is: 169,412.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,644.95 : 286,552.71 = 122,761.27 : x
  2. Step 2: Convert to fraction form
    207,644.95/286,552.71 = 122,761.27/x
  3. Step 3: Cross multiply
    207,644.95x = 286,552.71 × 122,761.27
  4. Step 4: Simplify right side
    207,644.95x = 35,177,572,554.97
  5. Step 5: Solve for x
    x = 35,177,572,554.97/207,644.95
  6. Step 6: Final answer
    x = 169,412.13

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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.