Home / 331,372.80-496,929.60-120,902.40

Finding the Fourth Proportional to 331,372.80, 496,929.60 and 120,902.40

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Solution

The fourth proportional to 331,372.80, 496,929.60 and 120,902.40 is: 181,306.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,372.80 : 496,929.60 = 120,902.40 : x
  2. Step 2: Convert to fraction form
    331,372.80/496,929.60 = 120,902.40/x
  3. Step 3: Cross multiply
    331,372.80x = 496,929.60 × 120,902.40
  4. Step 4: Simplify right side
    331,372.80x = 60,079,981,271.04
  5. Step 5: Solve for x
    x = 60,079,981,271.04/331,372.80
  6. Step 6: Final answer
    x = 181,306.32

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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.