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Finding the Fourth Proportional to 300,114.79, 449,672.41 and 211,181.46

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Solution

The fourth proportional to 300,114.79, 449,672.41 and 211,181.46 is: 316,420.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    300,114.79 : 449,672.41 = 211,181.46 : x
  2. Step 2: Convert to fraction form
    300,114.79/449,672.41 = 211,181.46/x
  3. Step 3: Cross multiply
    300,114.79x = 449,672.41 × 211,181.46
  4. Step 4: Simplify right side
    300,114.79x = 94,962,476,065.52
  5. Step 5: Solve for x
    x = 94,962,476,065.52/300,114.79
  6. Step 6: Final answer
    x = 316,420.51

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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.