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Finding the Fourth Proportional to 257,294.76, 354,799.08 and 203,494.56

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Solution

The fourth proportional to 257,294.76, 354,799.08 and 203,494.56 is: 280,610.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,294.76 : 354,799.08 = 203,494.56 : x
  2. Step 2: Convert to fraction form
    257,294.76/354,799.08 = 203,494.56/x
  3. Step 3: Cross multiply
    257,294.76x = 354,799.08 × 203,494.56
  4. Step 4: Simplify right side
    257,294.76x = 72,199,682,673.00
  5. Step 5: Solve for x
    x = 72,199,682,673.00/257,294.76
  6. Step 6: Final answer
    x = 280,610.78

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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.