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Finding the Fourth Proportional to 330,200.70, 495,301.05 and 328,232.40

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Solution

The fourth proportional to 330,200.70, 495,301.05 and 328,232.40 is: 492,348.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,200.70 : 495,301.05 = 328,232.40 : x
  2. Step 2: Convert to fraction form
    330,200.70/495,301.05 = 328,232.40/x
  3. Step 3: Cross multiply
    330,200.70x = 495,301.05 × 328,232.40
  4. Step 4: Simplify right side
    330,200.70x = 162,573,852,364.02
  5. Step 5: Solve for x
    x = 162,573,852,364.02/330,200.70
  6. Step 6: Final answer
    x = 492,348.60

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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.