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Finding the Fourth Proportional to 311,105.58, 429,334.01 and 175,144.68

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Solution

The fourth proportional to 311,105.58, 429,334.01 and 175,144.68 is: 241,704.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    311,105.58 : 429,334.01 = 175,144.68 : x
  2. Step 2: Convert to fraction form
    311,105.58/429,334.01 = 175,144.68/x
  3. Step 3: Cross multiply
    311,105.58x = 429,334.01 × 175,144.68
  4. Step 4: Simplify right side
    311,105.58x = 75,195,566,918.84
  5. Step 5: Solve for x
    x = 75,195,566,918.84/311,105.58
  6. Step 6: Final answer
    x = 241,704.33

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.