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Finding the Fourth Proportional to 222,868.90, 307,557.28 and 120,894.11

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Solution

The fourth proportional to 222,868.90, 307,557.28 and 120,894.11 is: 166,832.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    222,868.90 : 307,557.28 = 120,894.11 : x
  2. Step 2: Convert to fraction form
    222,868.90/307,557.28 = 120,894.11/x
  3. Step 3: Cross multiply
    222,868.90x = 307,557.28 × 120,894.11
  4. Step 4: Simplify right side
    222,868.90x = 37,181,863,639.62
  5. Step 5: Solve for x
    x = 37,181,863,639.62/222,868.90
  6. Step 6: Final answer
    x = 166,832.89

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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.