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Finding the Fourth Proportional to 257,048.20, 354,245.70 and 185,305.96

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Solution

The fourth proportional to 257,048.20, 354,245.70 and 185,305.96 is: 255,375.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,048.20 : 354,245.70 = 185,305.96 : x
  2. Step 2: Convert to fraction form
    257,048.20/354,245.70 = 185,305.96/x
  3. Step 3: Cross multiply
    257,048.20x = 354,245.70 × 185,305.96
  4. Step 4: Simplify right side
    257,048.20x = 65,643,839,514.37
  5. Step 5: Solve for x
    x = 65,643,839,514.37/257,048.20
  6. Step 6: Final answer
    x = 255,375.60

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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.