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Finding the Fourth Proportional to 483,830.35, 667,708.67 and 268,974

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Solution

The fourth proportional to 483,830.35, 667,708.67 and 268,974 is: 371,196.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    483,830.35 : 667,708.67 = 268,974 : x
  2. Step 2: Convert to fraction form
    483,830.35/667,708.67 = 268,974/x
  3. Step 3: Cross multiply
    483,830.35x = 667,708.67 × 268,974
  4. Step 4: Simplify right side
    483,830.35x = 179,596,270,964.04
  5. Step 5: Solve for x
    x = 179,596,270,964.04/483,830.35
  6. Step 6: Final answer
    x = 371,196.79

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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.