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Finding the Fourth Proportional to 372,645.80, 514,234.26 and 202,879.56

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Solution

The fourth proportional to 372,645.80, 514,234.26 and 202,879.56 is: 279,964.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,645.80 : 514,234.26 = 202,879.56 : x
  2. Step 2: Convert to fraction form
    372,645.80/514,234.26 = 202,879.56/x
  3. Step 3: Cross multiply
    372,645.80x = 514,234.26 × 202,879.56
  4. Step 4: Simplify right side
    372,645.80x = 104,327,620,405.73
  5. Step 5: Solve for x
    x = 104,327,620,405.73/372,645.80
  6. Step 6: Final answer
    x = 279,964.57

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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.