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Finding the Fourth Proportional to 269,079, 371,255.12 and 187,315.62

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Solution

The fourth proportional to 269,079, 371,255.12 and 187,315.62 is: 258,444.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    269,079 : 371,255.12 = 187,315.62 : x
  2. Step 2: Convert to fraction form
    269,079/371,255.12 = 187,315.62/x
  3. Step 3: Cross multiply
    269,079x = 371,255.12 × 187,315.62
  4. Step 4: Simplify right side
    269,079x = 69,541,882,980.97
  5. Step 5: Solve for x
    x = 69,541,882,980.97/269,079
  6. Step 6: Final answer
    x = 258,444.11

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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.