Home / 331,718.33-497,282.90-129,267.54

Finding the Fourth Proportional to 331,718.33, 497,282.90 and 129,267.54

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Solution

The fourth proportional to 331,718.33, 497,282.90 and 129,267.54 is: 193,786.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,718.33 : 497,282.90 = 129,267.54 : x
  2. Step 2: Convert to fraction form
    331,718.33/497,282.90 = 129,267.54/x
  3. Step 3: Cross multiply
    331,718.33x = 497,282.90 × 129,267.54
  4. Step 4: Simplify right side
    331,718.33x = 64,282,536,520.73
  5. Step 5: Solve for x
    x = 64,282,536,520.73/331,718.33
  6. Step 6: Final answer
    x = 193,786.51

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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.