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Finding the Fourth Proportional to 279,202.64, 418,797.36 and 89,663.44

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Solution

The fourth proportional to 279,202.64, 418,797.36 and 89,663.44 is: 134,493.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,202.64 : 418,797.36 = 89,663.44 : x
  2. Step 2: Convert to fraction form
    279,202.64/418,797.36 = 89,663.44/x
  3. Step 3: Cross multiply
    279,202.64x = 418,797.36 × 89,663.44
  4. Step 4: Simplify right side
    279,202.64x = 37,550,811,960.52
  5. Step 5: Solve for x
    x = 37,550,811,960.52/279,202.64
  6. Step 6: Final answer
    x = 134,493.04

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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.