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Finding the Fourth Proportional to 324,999.30, 487,504.48 and 88,336.20

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Solution

The fourth proportional to 324,999.30, 487,504.48 and 88,336.20 is: 132,505.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    324,999.30 : 487,504.48 = 88,336.20 : x
  2. Step 2: Convert to fraction form
    324,999.30/487,504.48 = 88,336.20/x
  3. Step 3: Cross multiply
    324,999.30x = 487,504.48 × 88,336.20
  4. Step 4: Simplify right side
    324,999.30x = 43,064,293,246.18
  5. Step 5: Solve for x
    x = 43,064,293,246.18/324,999.30
  6. Step 6: Final answer
    x = 132,505.80

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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.