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Finding the Fourth Proportional to 330,153.40, 495,512.86 and 327,668.32

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Solution

The fourth proportional to 330,153.40, 495,512.86 and 327,668.32 is: 491,783.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,153.40 : 495,512.86 = 327,668.32 : x
  2. Step 2: Convert to fraction form
    330,153.40/495,512.86 = 327,668.32/x
  3. Step 3: Cross multiply
    330,153.40x = 495,512.86 × 327,668.32
  4. Step 4: Simplify right side
    330,153.40x = 162,363,866,374.60
  5. Step 5: Solve for x
    x = 162,363,866,374.60/330,153.40
  6. Step 6: Final answer
    x = 491,783.11

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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.