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Finding the Fourth Proportional to 300,113.29, 449,670.16 and 211,179.95

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Solution

The fourth proportional to 300,113.29, 449,670.16 and 211,179.95 is: 316,418.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    300,113.29 : 449,670.16 = 211,179.95 : x
  2. Step 2: Convert to fraction form
    300,113.29/449,670.16 = 211,179.95/x
  3. Step 3: Cross multiply
    300,113.29x = 449,670.16 × 211,179.95
  4. Step 4: Simplify right side
    300,113.29x = 94,961,321,905.29
  5. Step 5: Solve for x
    x = 94,961,321,905.29/300,113.29
  6. Step 6: Final answer
    x = 316,418.25

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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.