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Finding the Fourth Proportional to 324,786, 487,121.49 and 88,147.08

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Solution

The fourth proportional to 324,786, 487,121.49 and 88,147.08 is: 132,205.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    324,786 : 487,121.49 = 88,147.08 : x
  2. Step 2: Convert to fraction form
    324,786/487,121.49 = 88,147.08/x
  3. Step 3: Cross multiply
    324,786x = 487,121.49 × 88,147.08
  4. Step 4: Simplify right side
    324,786x = 42,938,336,948.75
  5. Step 5: Solve for x
    x = 42,938,336,948.75/324,786
  6. Step 6: Final answer
    x = 132,205.01

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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.