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Finding the Fourth Proportional to 330,333.47, 495,500.52 and 81,015.47

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Solution

The fourth proportional to 330,333.47, 495,500.52 and 81,015.47 is: 121,523.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,333.47 : 495,500.52 = 81,015.47 : x
  2. Step 2: Convert to fraction form
    330,333.47/495,500.52 = 81,015.47/x
  3. Step 3: Cross multiply
    330,333.47x = 495,500.52 × 81,015.47
  4. Step 4: Simplify right side
    330,333.47x = 40,143,209,301.10
  5. Step 5: Solve for x
    x = 40,143,209,301.10/330,333.47
  6. Step 6: Final answer
    x = 121,523.29

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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.