Home / 665,650.12-998,278.08-192,339.76

Finding the Fourth Proportional to 665,650.12, 998,278.08 and 192,339.76

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Solution

The fourth proportional to 665,650.12, 998,278.08 and 192,339.76 is: 288,452.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    665,650.12 : 998,278.08 = 192,339.76 : x
  2. Step 2: Convert to fraction form
    665,650.12/998,278.08 = 192,339.76/x
  3. Step 3: Cross multiply
    665,650.12x = 998,278.08 × 192,339.76
  4. Step 4: Simplify right side
    665,650.12x = 192,008,566,320.46
  5. Step 5: Solve for x
    x = 192,008,566,320.46/665,650.12
  6. Step 6: Final answer
    x = 288,452.69

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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.