Home / 279,099.48-385,167.42-159,890.52

Finding the Fourth Proportional to 279,099.48, 385,167.42 and 159,890.52

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Solution

The fourth proportional to 279,099.48, 385,167.42 and 159,890.52 is: 220,654.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,099.48 : 385,167.42 = 159,890.52 : x
  2. Step 2: Convert to fraction form
    279,099.48/385,167.42 = 159,890.52/x
  3. Step 3: Cross multiply
    279,099.48x = 385,167.42 × 159,890.52
  4. Step 4: Simplify right side
    279,099.48x = 61,584,619,070.86
  5. Step 5: Solve for x
    x = 61,584,619,070.86/279,099.48
  6. Step 6: Final answer
    x = 220,654.73

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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.