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Finding the Fourth Proportional to 312,469.65, 467,519.85 and 207,493.65

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Solution

The fourth proportional to 312,469.65, 467,519.85 and 207,493.65 is: 310,453.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,469.65 : 467,519.85 = 207,493.65 : x
  2. Step 2: Convert to fraction form
    312,469.65/467,519.85 = 207,493.65/x
  3. Step 3: Cross multiply
    312,469.65x = 467,519.85 × 207,493.65
  4. Step 4: Simplify right side
    312,469.65x = 97,007,400,123.95
  5. Step 5: Solve for x
    x = 97,007,400,123.95/312,469.65
  6. Step 6: Final answer
    x = 310,453.83

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1.5x scale

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.