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Finding the Fourth Proportional to 330,871.89, 456,479.49 and 194,822.67

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Solution

The fourth proportional to 330,871.89, 456,479.49 and 194,822.67 is: 268,782.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,871.89 : 456,479.49 = 194,822.67 : x
  2. Step 2: Convert to fraction form
    330,871.89/456,479.49 = 194,822.67/x
  3. Step 3: Cross multiply
    330,871.89x = 456,479.49 × 194,822.67
  4. Step 4: Simplify right side
    330,871.89x = 88,932,553,042.04
  5. Step 5: Solve for x
    x = 88,932,553,042.04/330,871.89
  6. Step 6: Final answer
    x = 268,782.44

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.