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Finding the Fourth Proportional to 281,751.30, 422,653.68 and 79,346.88

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Solution

The fourth proportional to 281,751.30, 422,653.68 and 79,346.88 is: 119,027.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,751.30 : 422,653.68 = 79,346.88 : x
  2. Step 2: Convert to fraction form
    281,751.30/422,653.68 = 79,346.88/x
  3. Step 3: Cross multiply
    281,751.30x = 422,653.68 × 79,346.88
  4. Step 4: Simplify right side
    281,751.30x = 33,536,250,828.52
  5. Step 5: Solve for x
    x = 33,536,250,828.52/281,751.30
  6. Step 6: Final answer
    x = 119,027.85

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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.