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Finding the Fourth Proportional to 361,952.20, 542,928.30 and 220,234.60

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Solution

The fourth proportional to 361,952.20, 542,928.30 and 220,234.60 is: 330,351.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    361,952.20 : 542,928.30 = 220,234.60 : x
  2. Step 2: Convert to fraction form
    361,952.20/542,928.30 = 220,234.60/x
  3. Step 3: Cross multiply
    361,952.20x = 542,928.30 × 220,234.60
  4. Step 4: Simplify right side
    361,952.20x = 119,571,596,979.18
  5. Step 5: Solve for x
    x = 119,571,596,979.18/361,952.20
  6. Step 6: Final answer
    x = 330,351.90

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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.