Home / 279,232.24-418,849.52-87,109.04

Finding the Fourth Proportional to 279,232.24, 418,849.52 and 87,109.04

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Solution

The fourth proportional to 279,232.24, 418,849.52 and 87,109.04 is: 130,663.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,232.24 : 418,849.52 = 87,109.04 : x
  2. Step 2: Convert to fraction form
    279,232.24/418,849.52 = 87,109.04/x
  3. Step 3: Cross multiply
    279,232.24x = 418,849.52 × 87,109.04
  4. Step 4: Simplify right side
    279,232.24x = 36,485,579,591.66
  5. Step 5: Solve for x
    x = 36,485,579,591.66/279,232.24
  6. Step 6: Final answer
    x = 130,663.92

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.