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Finding the Fourth Proportional to 330,176.40, 495,264.60 and 80,858.40

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Solution

The fourth proportional to 330,176.40, 495,264.60 and 80,858.40 is: 121,287.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,176.40 : 495,264.60 = 80,858.40 : x
  2. Step 2: Convert to fraction form
    330,176.40/495,264.60 = 80,858.40/x
  3. Step 3: Cross multiply
    330,176.40x = 495,264.60 × 80,858.40
  4. Step 4: Simplify right side
    330,176.40x = 40,046,303,132.64
  5. Step 5: Solve for x
    x = 40,046,303,132.64/330,176.40
  6. Step 6: Final answer
    x = 121,287.60

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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.