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Finding the Fourth Proportional to 663,233.40, 994,607.10 and 214,072.20

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Solution

The fourth proportional to 663,233.40, 994,607.10 and 214,072.20 is: 321,029.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    663,233.40 : 994,607.10 = 214,072.20 : x
  2. Step 2: Convert to fraction form
    663,233.40/994,607.10 = 214,072.20/x
  3. Step 3: Cross multiply
    663,233.40x = 994,607.10 × 214,072.20
  4. Step 4: Simplify right side
    663,233.40x = 212,917,730,032.62
  5. Step 5: Solve for x
    x = 212,917,730,032.62/663,233.40
  6. Step 6: Final answer
    x = 321,029.87

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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.