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Finding the Fourth Proportional to 203,377.73, 305,082.18 and 68,442.47

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Solution

The fourth proportional to 203,377.73, 305,082.18 and 68,442.47 is: 102,668.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,377.73 : 305,082.18 = 68,442.47 : x
  2. Step 2: Convert to fraction form
    203,377.73/305,082.18 = 68,442.47/x
  3. Step 3: Cross multiply
    203,377.73x = 305,082.18 × 68,442.47
  4. Step 4: Simplify right side
    203,377.73x = 20,880,576,426.77
  5. Step 5: Solve for x
    x = 20,880,576,426.77/203,377.73
  6. Step 6: Final answer
    x = 102,668.94

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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.