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Finding the Fourth Proportional to 248,189.00, 372,209.51 and 90,380.54

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Solution

The fourth proportional to 248,189.00, 372,209.51 and 90,380.54 is: 135,543.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,189.00 : 372,209.51 = 90,380.54 : x
  2. Step 2: Convert to fraction form
    248,189.00/372,209.51 = 90,380.54/x
  3. Step 3: Cross multiply
    248,189.00x = 372,209.51 × 90,380.54
  4. Step 4: Simplify right side
    248,189.00x = 33,640,497,663.41
  5. Step 5: Solve for x
    x = 33,640,497,663.41/248,189.00
  6. Step 6: Final answer
    x = 135,543.87

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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.