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Finding the Fourth Proportional to 299,718.70, 449,750.85 and 112,864.30

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Solution

The fourth proportional to 299,718.70, 449,750.85 and 112,864.30 is: 169,361.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    299,718.70 : 449,750.85 = 112,864.30 : x
  2. Step 2: Convert to fraction form
    299,718.70/449,750.85 = 112,864.30/x
  3. Step 3: Cross multiply
    299,718.70x = 449,750.85 × 112,864.30
  4. Step 4: Simplify right side
    299,718.70x = 50,760,814,859.66
  5. Step 5: Solve for x
    x = 50,760,814,859.66/299,718.70
  6. Step 6: Final answer
    x = 169,361.52

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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.