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Finding the Fourth Proportional to 354,296.65, 488,775.05 and 225,165.92

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Solution

The fourth proportional to 354,296.65, 488,775.05 and 225,165.92 is: 310,630.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,296.65 : 488,775.05 = 225,165.92 : x
  2. Step 2: Convert to fraction form
    354,296.65/488,775.05 = 225,165.92/x
  3. Step 3: Cross multiply
    354,296.65x = 488,775.05 × 225,165.92
  4. Step 4: Simplify right side
    354,296.65x = 110,055,480,236.59
  5. Step 5: Solve for x
    x = 110,055,480,236.59/354,296.65
  6. Step 6: Final answer
    x = 310,630.88

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.