Home / 269,857.78-372,436.55-156,680.53

Finding the Fourth Proportional to 269,857.78, 372,436.55 and 156,680.53

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Solution

The fourth proportional to 269,857.78, 372,436.55 and 156,680.53 is: 216,238.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    269,857.78 : 372,436.55 = 156,680.53 : x
  2. Step 2: Convert to fraction form
    269,857.78/372,436.55 = 156,680.53/x
  3. Step 3: Cross multiply
    269,857.78x = 372,436.55 × 156,680.53
  4. Step 4: Simplify right side
    269,857.78x = 58,353,555,727.51
  5. Step 5: Solve for x
    x = 58,353,555,727.51/269,857.78
  6. Step 6: Final answer
    x = 216,238.18

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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.