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Finding the Fourth Proportional to 262,717.97, 394,132.32 and 85,211.16

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Solution

The fourth proportional to 262,717.97, 394,132.32 and 85,211.16 is: 127,834.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    262,717.97 : 394,132.32 = 85,211.16 : x
  2. Step 2: Convert to fraction form
    262,717.97/394,132.32 = 85,211.16/x
  3. Step 3: Cross multiply
    262,717.97x = 394,132.32 × 85,211.16
  4. Step 4: Simplify right side
    262,717.97x = 33,584,472,180.69
  5. Step 5: Solve for x
    x = 33,584,472,180.69/262,717.97
  6. Step 6: Final answer
    x = 127,834.70

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1.5x scale

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.