Home / 331,728.48-497,298.08-129,277.69

Finding the Fourth Proportional to 331,728.48, 497,298.08 and 129,277.69

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Solution

The fourth proportional to 331,728.48, 497,298.08 and 129,277.69 is: 193,801.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,728.48 : 497,298.08 = 129,277.69 : x
  2. Step 2: Convert to fraction form
    331,728.48/497,298.08 = 129,277.69/x
  3. Step 3: Cross multiply
    331,728.48x = 497,298.08 × 129,277.69
  4. Step 4: Simplify right side
    331,728.48x = 64,289,546,103.78
  5. Step 5: Solve for x
    x = 64,289,546,103.78/331,728.48
  6. Step 6: Final answer
    x = 193,801.71

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1.5x scale

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.