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Finding the Fourth Proportional to 269,758.48, 372,201.46 and 172,918.12

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Solution

The fourth proportional to 269,758.48, 372,201.46 and 172,918.12 is: 238,585.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    269,758.48 : 372,201.46 = 172,918.12 : x
  2. Step 2: Convert to fraction form
    269,758.48/372,201.46 = 172,918.12/x
  3. Step 3: Cross multiply
    269,758.48x = 372,201.46 × 172,918.12
  4. Step 4: Simplify right side
    269,758.48x = 64,360,376,724.46
  5. Step 5: Solve for x
    x = 64,360,376,724.46/269,758.48
  6. Step 6: Final answer
    x = 238,585.18

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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.