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Finding the Fourth Proportional to 252,778.40, 379,174 and 65,798.56

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Solution

The fourth proportional to 252,778.40, 379,174 and 65,798.56 is: 98,699.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,778.40 : 379,174 = 65,798.56 : x
  2. Step 2: Convert to fraction form
    252,778.40/379,174 = 65,798.56/x
  3. Step 3: Cross multiply
    252,778.40x = 379,174 × 65,798.56
  4. Step 4: Simplify right side
    252,778.40x = 24,949,103,189.44
  5. Step 5: Solve for x
    x = 24,949,103,189.44/252,778.40
  6. Step 6: Final answer
    x = 98,699.51

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.