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Finding the Fourth Proportional to 371,950.60, 513,285.78 and 202,189

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Solution

The fourth proportional to 371,950.60, 513,285.78 and 202,189 is: 279,017.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    371,950.60 : 513,285.78 = 202,189 : x
  2. Step 2: Convert to fraction form
    371,950.60/513,285.78 = 202,189/x
  3. Step 3: Cross multiply
    371,950.60x = 513,285.78 × 202,189
  4. Step 4: Simplify right side
    371,950.60x = 103,780,738,572.42
  5. Step 5: Solve for x
    x = 103,780,738,572.42/371,950.60
  6. Step 6: Final answer
    x = 279,017.53

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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.