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Finding the Fourth Proportional to 330,816.96, 495,344.16 and 225,840.96

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Solution

The fourth proportional to 330,816.96, 495,344.16 and 225,840.96 is: 338,159.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,816.96 : 495,344.16 = 225,840.96 : x
  2. Step 2: Convert to fraction form
    330,816.96/495,344.16 = 225,840.96/x
  3. Step 3: Cross multiply
    330,816.96x = 495,344.16 × 225,840.96
  4. Step 4: Simplify right side
    330,816.96x = 111,869,000,624.79
  5. Step 5: Solve for x
    x = 111,869,000,624.79/330,816.96
  6. Step 6: Final answer
    x = 338,159.81

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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.