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Finding the Fourth Proportional to 486,022.70, 670,679.78 and 268,233.32

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Solution

The fourth proportional to 486,022.70, 670,679.78 and 268,233.32 is: 370,144.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    486,022.70 : 670,679.78 = 268,233.32 : x
  2. Step 2: Convert to fraction form
    486,022.70/670,679.78 = 268,233.32/x
  3. Step 3: Cross multiply
    486,022.70x = 670,679.78 × 268,233.32
  4. Step 4: Simplify right side
    486,022.70x = 179,898,664,046.27
  5. Step 5: Solve for x
    x = 179,898,664,046.27/486,022.70
  6. Step 6: Final answer
    x = 370,144.57

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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.