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Finding the Fourth Proportional to 665,692, 998,538 and 222,460

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Solution

The fourth proportional to 665,692, 998,538 and 222,460 is: 333,690

Step by Step Solution

  1. Step 1: Write the proportion equation
    665,692 : 998,538 = 222,460 : x
  2. Step 2: Convert to fraction form
    665,692/998,538 = 222,460/x
  3. Step 3: Cross multiply
    665,692x = 998,538 × 222,460
  4. Step 4: Simplify right side
    665,692x = 222,134,763,480
  5. Step 5: Solve for x
    x = 222,134,763,480/665,692
  6. Step 6: Final answer
    x = 333,690

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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.