Home / 279,091.90-385,151.52-151,771.24

Finding the Fourth Proportional to 279,091.90, 385,151.52 and 151,771.24

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Solution

The fourth proportional to 279,091.90, 385,151.52 and 151,771.24 is: 209,446.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,091.90 : 385,151.52 = 151,771.24 : x
  2. Step 2: Convert to fraction form
    279,091.90/385,151.52 = 151,771.24/x
  3. Step 3: Cross multiply
    279,091.90x = 385,151.52 × 151,771.24
  4. Step 4: Simplify right side
    279,091.90x = 58,454,923,778.28
  5. Step 5: Solve for x
    x = 58,454,923,778.28/279,091.90
  6. Step 6: Final answer
    x = 209,446.87

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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.