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Finding the Fourth Proportional to 250,535.67, 345,738.69 and 137,358.42

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Solution

The fourth proportional to 250,535.67, 345,738.69 and 137,358.42 is: 189,554.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    250,535.67 : 345,738.69 = 137,358.42 : x
  2. Step 2: Convert to fraction form
    250,535.67/345,738.69 = 137,358.42/x
  3. Step 3: Cross multiply
    250,535.67x = 345,738.69 × 137,358.42
  4. Step 4: Simplify right side
    250,535.67x = 47,490,120,191.27
  5. Step 5: Solve for x
    x = 47,490,120,191.27/250,535.67
  6. Step 6: Final answer
    x = 189,554.33

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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.