Home / 279,583.80-385,811.92-158,708.92

Finding the Fourth Proportional to 279,583.80, 385,811.92 and 158,708.92

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Solution

The fourth proportional to 279,583.80, 385,811.92 and 158,708.92 is: 219,010.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,583.80 : 385,811.92 = 158,708.92 : x
  2. Step 2: Convert to fraction form
    279,583.80/385,811.92 = 158,708.92/x
  3. Step 3: Cross multiply
    279,583.80x = 385,811.92 × 158,708.92
  4. Step 4: Simplify right side
    279,583.80x = 61,231,793,146.33
  5. Step 5: Solve for x
    x = 61,231,793,146.33/279,583.80
  6. Step 6: Final answer
    x = 219,010.52

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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.