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Finding the Fourth Proportional to 250,778.68, 346,074.56 and 143,351

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Solution

The fourth proportional to 250,778.68, 346,074.56 and 143,351 is: 197,824.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    250,778.68 : 346,074.56 = 143,351 : x
  2. Step 2: Convert to fraction form
    250,778.68/346,074.56 = 143,351/x
  3. Step 3: Cross multiply
    250,778.68x = 346,074.56 × 143,351
  4. Step 4: Simplify right side
    250,778.68x = 49,610,134,250.56
  5. Step 5: Solve for x
    x = 49,610,134,250.56/250,778.68
  6. Step 6: Final answer
    x = 197,824.37

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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.