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Finding the Fourth Proportional to 324,972.80, 487,457.83 and 88,314.79

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Solution

The fourth proportional to 324,972.80, 487,457.83 and 88,314.79 is: 132,471.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    324,972.80 : 487,457.83 = 88,314.79 : x
  2. Step 2: Convert to fraction form
    324,972.80/487,457.83 = 88,314.79/x
  3. Step 3: Cross multiply
    324,972.80x = 487,457.83 × 88,314.79
  4. Step 4: Simplify right side
    324,972.80x = 43,049,735,890.31
  5. Step 5: Solve for x
    x = 43,049,735,890.31/324,972.80
  6. Step 6: Final answer
    x = 132,471.81

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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.