Home / 269,117.12-371,371.92-155,918

Finding the Fourth Proportional to 269,117.12, 371,371.92 and 155,918

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Solution

The fourth proportional to 269,117.12, 371,371.92 and 155,918 is: 215,161.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    269,117.12 : 371,371.92 = 155,918 : x
  2. Step 2: Convert to fraction form
    269,117.12/371,371.92 = 155,918/x
  3. Step 3: Cross multiply
    269,117.12x = 371,371.92 × 155,918
  4. Step 4: Simplify right side
    269,117.12x = 57,903,567,022.56
  5. Step 5: Solve for x
    x = 57,903,567,022.56/269,117.12
  6. Step 6: Final answer
    x = 215,161.22

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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.