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Finding the Fourth Proportional to 338,377.29, 467,576.51 and 321,979.65

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Solution

The fourth proportional to 338,377.29, 467,576.51 and 321,979.65 is: 444,917.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    338,377.29 : 467,576.51 = 321,979.65 : x
  2. Step 2: Convert to fraction form
    338,377.29/467,576.51 = 321,979.65/x
  3. Step 3: Cross multiply
    338,377.29x = 467,576.51 × 321,979.65
  4. Step 4: Simplify right side
    338,377.29x = 150,550,121,038.02
  5. Step 5: Solve for x
    x = 150,550,121,038.02/338,377.29
  6. Step 6: Final answer
    x = 444,917.92

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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.