Home / 421,923.12-582,251.78-228,330.68

Finding the Fourth Proportional to 421,923.12, 582,251.78 and 228,330.68

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Solution

The fourth proportional to 421,923.12, 582,251.78 and 228,330.68 is: 315,095.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    421,923.12 : 582,251.78 = 228,330.68 : x
  2. Step 2: Convert to fraction form
    421,923.12/582,251.78 = 228,330.68/x
  3. Step 3: Cross multiply
    421,923.12x = 582,251.78 × 228,330.68
  4. Step 4: Simplify right side
    421,923.12x = 132,945,944,858.61
  5. Step 5: Solve for x
    x = 132,945,944,858.61/421,923.12
  6. Step 6: Final answer
    x = 315,095.19

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.