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Finding the Fourth Proportional to 330,169.20, 495,253.80 and 328,200.90

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Solution

The fourth proportional to 330,169.20, 495,253.80 and 328,200.90 is: 492,301.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,169.20 : 495,253.80 = 328,200.90 : x
  2. Step 2: Convert to fraction form
    330,169.20/495,253.80 = 328,200.90/x
  3. Step 3: Cross multiply
    330,169.20x = 495,253.80 × 328,200.90
  4. Step 4: Simplify right side
    330,169.20x = 162,542,742,888.42
  5. Step 5: Solve for x
    x = 162,542,742,888.42/330,169.20
  6. Step 6: Final answer
    x = 492,301.35

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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.