Home / 269,072.75-371,320.40-155,961.11

Finding the Fourth Proportional to 269,072.75, 371,320.40 and 155,961.11

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Solution

The fourth proportional to 269,072.75, 371,320.40 and 155,961.11 is: 215,226.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    269,072.75 : 371,320.40 = 155,961.11 : x
  2. Step 2: Convert to fraction form
    269,072.75/371,320.40 = 155,961.11/x
  3. Step 3: Cross multiply
    269,072.75x = 371,320.40 × 155,961.11
  4. Step 4: Simplify right side
    269,072.75x = 57,911,541,749.64
  5. Step 5: Solve for x
    x = 57,911,541,749.64/269,072.75
  6. Step 6: Final answer
    x = 215,226.33

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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.