Home / 330,945.69-495,982.42-131,157.16

Finding the Fourth Proportional to 330,945.69, 495,982.42 and 131,157.16

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Solution

The fourth proportional to 330,945.69, 495,982.42 and 131,157.16 is: 196,562.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,945.69 : 495,982.42 = 131,157.16 : x
  2. Step 2: Convert to fraction form
    330,945.69/495,982.42 = 131,157.16/x
  3. Step 3: Cross multiply
    330,945.69x = 495,982.42 × 131,157.16
  4. Step 4: Simplify right side
    330,945.69x = 65,051,645,617.13
  5. Step 5: Solve for x
    x = 65,051,645,617.13/330,945.69
  6. Step 6: Final answer
    x = 196,562.90

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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.