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Finding the Fourth Proportional to 330,109.20, 495,163.80 and 152,962.20

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Solution

The fourth proportional to 330,109.20, 495,163.80 and 152,962.20 is: 229,443.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,109.20 : 495,163.80 = 152,962.20 : x
  2. Step 2: Convert to fraction form
    330,109.20/495,163.80 = 152,962.20/x
  3. Step 3: Cross multiply
    330,109.20x = 495,163.80 × 152,962.20
  4. Step 4: Simplify right side
    330,109.20x = 75,741,344,208.36
  5. Step 5: Solve for x
    x = 75,741,344,208.36/330,109.20
  6. Step 6: Final answer
    x = 229,443.30

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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.