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Finding the Fourth Proportional to 372,818.56, 514,540.40 and 219,899.92

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Solution

The fourth proportional to 372,818.56, 514,540.40 and 219,899.92 is: 303,491.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,818.56 : 514,540.40 = 219,899.92 : x
  2. Step 2: Convert to fraction form
    372,818.56/514,540.40 = 219,899.92/x
  3. Step 3: Cross multiply
    372,818.56x = 514,540.40 × 219,899.92
  4. Step 4: Simplify right side
    372,818.56x = 113,147,392,796.77
  5. Step 5: Solve for x
    x = 113,147,392,796.77/372,818.56
  6. Step 6: Final answer
    x = 303,491.85

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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.