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Finding the Fourth Proportional to 279,059.60, 418,336.22 and 101,441.16

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Solution

The fourth proportional to 279,059.60, 418,336.22 and 101,441.16 is: 152,069.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,059.60 : 418,336.22 = 101,441.16 : x
  2. Step 2: Convert to fraction form
    279,059.60/418,336.22 = 101,441.16/x
  3. Step 3: Cross multiply
    279,059.60x = 418,336.22 × 101,441.16
  4. Step 4: Simplify right side
    279,059.60x = 42,436,511,426.82
  5. Step 5: Solve for x
    x = 42,436,511,426.82/279,059.60
  6. Step 6: Final answer
    x = 152,069.71

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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.