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Finding the Fourth Proportional to 301,011.75, 451,592.98 and 87,779.69

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Solution

The fourth proportional to 301,011.75, 451,592.98 and 87,779.69 is: 131,691.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    301,011.75 : 451,592.98 = 87,779.69 : x
  2. Step 2: Convert to fraction form
    301,011.75/451,592.98 = 87,779.69/x
  3. Step 3: Cross multiply
    301,011.75x = 451,592.98 × 87,779.69
  4. Step 4: Simplify right side
    301,011.75x = 39,640,690,842.05
  5. Step 5: Solve for x
    x = 39,640,690,842.05/301,011.75
  6. Step 6: Final answer
    x = 131,691.51

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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.