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Finding the Fourth Proportional to 252,903.20, 379,027.76 and 189,223.70

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Solution

The fourth proportional to 252,903.20, 379,027.76 and 189,223.70 is: 283,590.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,903.20 : 379,027.76 = 189,223.70 : x
  2. Step 2: Convert to fraction form
    252,903.20/379,027.76 = 189,223.70/x
  3. Step 3: Cross multiply
    252,903.20x = 379,027.76 × 189,223.70
  4. Step 4: Simplify right side
    252,903.20x = 71,721,032,308.65
  5. Step 5: Solve for x
    x = 71,721,032,308.65/252,903.20
  6. Step 6: Final answer
    x = 283,590.85

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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.