Home / 328,175.20-492,195.60-91,458.40

Finding the Fourth Proportional to 328,175.20, 492,195.60 and 91,458.40

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Solution

The fourth proportional to 328,175.20, 492,195.60 and 91,458.40 is: 137,168.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,175.20 : 492,195.60 = 91,458.40 : x
  2. Step 2: Convert to fraction form
    328,175.20/492,195.60 = 91,458.40/x
  3. Step 3: Cross multiply
    328,175.20x = 492,195.60 × 91,458.40
  4. Step 4: Simplify right side
    328,175.20x = 45,015,422,063.04
  5. Step 5: Solve for x
    x = 45,015,422,063.04/328,175.20
  6. Step 6: Final answer
    x = 137,168.87

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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.