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Finding the Fourth Proportional to 338,625.69, 467,339.67 and 216,121.56

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Solution

The fourth proportional to 338,625.69, 467,339.67 and 216,121.56 is: 298,270.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    338,625.69 : 467,339.67 = 216,121.56 : x
  2. Step 2: Convert to fraction form
    338,625.69/467,339.67 = 216,121.56/x
  3. Step 3: Cross multiply
    338,625.69x = 467,339.67 × 216,121.56
  4. Step 4: Simplify right side
    338,625.69x = 101,002,178,530.29
  5. Step 5: Solve for x
    x = 101,002,178,530.29/338,625.69
  6. Step 6: Final answer
    x = 298,270.87

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1.5x scale

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.