Home / 331,206.20-496,938.90-120,865.40

Finding the Fourth Proportional to 331,206.20, 496,938.90 and 120,865.40

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Solution

The fourth proportional to 331,206.20, 496,938.90 and 120,865.40 is: 181,345.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,206.20 : 496,938.90 = 120,865.40 : x
  2. Step 2: Convert to fraction form
    331,206.20/496,938.90 = 120,865.40/x
  3. Step 3: Cross multiply
    331,206.20x = 496,938.90 × 120,865.40
  4. Step 4: Simplify right side
    331,206.20x = 60,062,718,924.06
  5. Step 5: Solve for x
    x = 60,062,718,924.06/331,206.20
  6. Step 6: Final answer
    x = 181,345.39

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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.