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Finding the Fourth Proportional to 300,386.73, 450,082.50 and 211,204.51

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Solution

The fourth proportional to 300,386.73, 450,082.50 and 211,204.51 is: 316,456.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    300,386.73 : 450,082.50 = 211,204.51 : x
  2. Step 2: Convert to fraction form
    300,386.73/450,082.50 = 211,204.51/x
  3. Step 3: Cross multiply
    300,386.73x = 450,082.50 × 211,204.51
  4. Step 4: Simplify right side
    300,386.73x = 95,059,453,872.08
  5. Step 5: Solve for x
    x = 95,059,453,872.08/300,386.73
  6. Step 6: Final answer
    x = 316,456.90

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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.