Home / 279,890.36-386,259.19-159,052.22

Finding the Fourth Proportional to 279,890.36, 386,259.19 and 159,052.22

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Solution

The fourth proportional to 279,890.36, 386,259.19 and 159,052.22 is: 219,498.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,890.36 : 386,259.19 = 159,052.22 : x
  2. Step 2: Convert to fraction form
    279,890.36/386,259.19 = 159,052.22/x
  3. Step 3: Cross multiply
    279,890.36x = 386,259.19 × 159,052.22
  4. Step 4: Simplify right side
    279,890.36x = 61,435,379,335.98
  5. Step 5: Solve for x
    x = 61,435,379,335.98/279,890.36
  6. Step 6: Final answer
    x = 219,498.02

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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.