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Finding the Fourth Proportional to 262,635.67, 394,076.52 and 129,443.32

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Solution

The fourth proportional to 262,635.67, 394,076.52 and 129,443.32 is: 194,225.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    262,635.67 : 394,076.52 = 129,443.32 : x
  2. Step 2: Convert to fraction form
    262,635.67/394,076.52 = 129,443.32/x
  3. Step 3: Cross multiply
    262,635.67x = 394,076.52 × 129,443.32
  4. Step 4: Simplify right side
    262,635.67x = 51,010,573,082.85
  5. Step 5: Solve for x
    x = 51,010,573,082.85/262,635.67
  6. Step 6: Final answer
    x = 194,225.61

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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.