Home / 194,213.60-291,320.40-115,287.20

Finding the Fourth Proportional to 194,213.60, 291,320.40 and 115,287.20

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Solution

The fourth proportional to 194,213.60, 291,320.40 and 115,287.20 is: 172,930.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    194,213.60 : 291,320.40 = 115,287.20 : x
  2. Step 2: Convert to fraction form
    194,213.60/291,320.40 = 115,287.20/x
  3. Step 3: Cross multiply
    194,213.60x = 291,320.40 × 115,287.20
  4. Step 4: Simplify right side
    194,213.60x = 33,585,513,218.88
  5. Step 5: Solve for x
    x = 33,585,513,218.88/194,213.60
  6. Step 6: Final answer
    x = 172,930.80

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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.