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Finding the Fourth Proportional to 372,989.18, 514,722.22 and 220,027.66

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Solution

The fourth proportional to 372,989.18, 514,722.22 and 220,027.66 is: 303,636.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,989.18 : 514,722.22 = 220,027.66 : x
  2. Step 2: Convert to fraction form
    372,989.18/514,722.22 = 220,027.66/x
  3. Step 3: Cross multiply
    372,989.18x = 514,722.22 × 220,027.66
  4. Step 4: Simplify right side
    372,989.18x = 113,253,123,779.73
  5. Step 5: Solve for x
    x = 113,253,123,779.73/372,989.18
  6. Step 6: Final answer
    x = 303,636.48

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.