Home / 421,001.28-580,951.44-229,974.12

Finding the Fourth Proportional to 421,001.28, 580,951.44 and 229,974.12

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Solution

The fourth proportional to 421,001.28, 580,951.44 and 229,974.12 is: 317,347.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    421,001.28 : 580,951.44 = 229,974.12 : x
  2. Step 2: Convert to fraction form
    421,001.28/580,951.44 = 229,974.12/x
  3. Step 3: Cross multiply
    421,001.28x = 580,951.44 × 229,974.12
  4. Step 4: Simplify right side
    421,001.28x = 133,603,796,176.73
  5. Step 5: Solve for x
    x = 133,603,796,176.73/421,001.28
  6. Step 6: Final answer
    x = 317,347.72

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1.5x scale

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.