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Finding the Fourth Proportional to 202,239.59, 279,040.82 and 123,637.73

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Solution

The fourth proportional to 202,239.59, 279,040.82 and 123,637.73 is: 170,589.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,239.59 : 279,040.82 = 123,637.73 : x
  2. Step 2: Convert to fraction form
    202,239.59/279,040.82 = 123,637.73/x
  3. Step 3: Cross multiply
    202,239.59x = 279,040.82 × 123,637.73
  4. Step 4: Simplify right side
    202,239.59x = 34,499,971,548.75
  5. Step 5: Solve for x
    x = 34,499,971,548.75/202,239.59
  6. Step 6: Final answer
    x = 170,589.61

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1.5x scale

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.