Home / 275,758.23-380,531.75-154,904.61

Finding the Fourth Proportional to 275,758.23, 380,531.75 and 154,904.61

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Solution

The fourth proportional to 275,758.23, 380,531.75 and 154,904.61 is: 213,760.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,758.23 : 380,531.75 = 154,904.61 : x
  2. Step 2: Convert to fraction form
    275,758.23/380,531.75 = 154,904.61/x
  3. Step 3: Cross multiply
    275,758.23x = 380,531.75 × 154,904.61
  4. Step 4: Simplify right side
    275,758.23x = 58,946,121,551.84
  5. Step 5: Solve for x
    x = 58,946,121,551.84/275,758.23
  6. Step 6: Final answer
    x = 213,760.15

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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.