Home / 330,185.20-495,277.80-80,867.20

Finding the Fourth Proportional to 330,185.20, 495,277.80 and 80,867.20

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Solution

The fourth proportional to 330,185.20, 495,277.80 and 80,867.20 is: 121,300.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,185.20 : 495,277.80 = 80,867.20 : x
  2. Step 2: Convert to fraction form
    330,185.20/495,277.80 = 80,867.20/x
  3. Step 3: Cross multiply
    330,185.20x = 495,277.80 × 80,867.20
  4. Step 4: Simplify right side
    330,185.20x = 40,051,728,908.16
  5. Step 5: Solve for x
    x = 40,051,728,908.16/330,185.20
  6. Step 6: Final answer
    x = 121,300.80

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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.