Home / 330,171.10-495,256.65-80,853.10

Finding the Fourth Proportional to 330,171.10, 495,256.65 and 80,853.10

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Solution

The fourth proportional to 330,171.10, 495,256.65 and 80,853.10 is: 121,279.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,171.10 : 495,256.65 = 80,853.10 : x
  2. Step 2: Convert to fraction form
    330,171.10/495,256.65 = 80,853.10/x
  3. Step 3: Cross multiply
    330,171.10x = 495,256.65 × 80,853.10
  4. Step 4: Simplify right side
    330,171.10x = 40,043,035,448.12
  5. Step 5: Solve for x
    x = 40,043,035,448.12/330,171.10
  6. Step 6: Final answer
    x = 121,279.65

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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.