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Finding the Fourth Proportional to 324,808.10, 487,212.40 and 88,150.78

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Solution

The fourth proportional to 324,808.10, 487,212.40 and 88,150.78 is: 132,226.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    324,808.10 : 487,212.40 = 88,150.78 : x
  2. Step 2: Convert to fraction form
    324,808.10/487,212.40 = 88,150.78/x
  3. Step 3: Cross multiply
    324,808.10x = 487,212.40 × 88,150.78
  4. Step 4: Simplify right side
    324,808.10x = 42,948,152,644.92
  5. Step 5: Solve for x
    x = 42,948,152,644.92/324,808.10
  6. Step 6: Final answer
    x = 132,226.24

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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.