Home / 354,775.20-490,122.92-232,557.72

Finding the Fourth Proportional to 354,775.20, 490,122.92 and 232,557.72

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Solution

The fourth proportional to 354,775.20, 490,122.92 and 232,557.72 is: 321,279.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,775.20 : 490,122.92 = 232,557.72 : x
  2. Step 2: Convert to fraction form
    354,775.20/490,122.92 = 232,557.72/x
  3. Step 3: Cross multiply
    354,775.20x = 490,122.92 × 232,557.72
  4. Step 4: Simplify right side
    354,775.20x = 113,981,868,794.94
  5. Step 5: Solve for x
    x = 113,981,868,794.94/354,775.20
  6. Step 6: Final answer
    x = 321,279.13

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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.