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Finding the Fourth Proportional to 321,930.30, 482,703.45 and 197,360.70

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Solution

The fourth proportional to 321,930.30, 482,703.45 and 197,360.70 is: 295,923.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,930.30 : 482,703.45 = 197,360.70 : x
  2. Step 2: Convert to fraction form
    321,930.30/482,703.45 = 197,360.70/x
  3. Step 3: Cross multiply
    321,930.30x = 482,703.45 × 197,360.70
  4. Step 4: Simplify right side
    321,930.30x = 95,266,690,784.42
  5. Step 5: Solve for x
    x = 95,266,690,784.42/321,930.30
  6. Step 6: Final answer
    x = 295,923.34

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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.