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Finding the Fourth Proportional to 324,808.16, 487,192.80 and 88,145.60

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Solution

The fourth proportional to 324,808.16, 487,192.80 and 88,145.60 is: 132,213.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    324,808.16 : 487,192.80 = 88,145.60 : x
  2. Step 2: Convert to fraction form
    324,808.16/487,192.80 = 88,145.60/x
  3. Step 3: Cross multiply
    324,808.16x = 487,192.80 × 88,145.60
  4. Step 4: Simplify right side
    324,808.16x = 42,943,901,671.68
  5. Step 5: Solve for x
    x = 42,943,901,671.68/324,808.16
  6. Step 6: Final answer
    x = 132,213.12

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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.