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Finding the Fourth Proportional to 361,856.40, 542,687.40 and 151,450.80

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Solution

The fourth proportional to 361,856.40, 542,687.40 and 151,450.80 is: 227,135.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    361,856.40 : 542,687.40 = 151,450.80 : x
  2. Step 2: Convert to fraction form
    361,856.40/542,687.40 = 151,450.80/x
  3. Step 3: Cross multiply
    361,856.40x = 542,687.40 × 151,450.80
  4. Step 4: Simplify right side
    361,856.40x = 82,190,440,879.92
  5. Step 5: Solve for x
    x = 82,190,440,879.92/361,856.40
  6. Step 6: Final answer
    x = 227,135.52

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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.