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Finding the Fourth Proportional to 221,946.40, 333,003.40 and 133,261.72

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Solution

The fourth proportional to 221,946.40, 333,003.40 and 133,261.72 is: 199,942.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,946.40 : 333,003.40 = 133,261.72 : x
  2. Step 2: Convert to fraction form
    221,946.40/333,003.40 = 133,261.72/x
  3. Step 3: Cross multiply
    221,946.40x = 333,003.40 × 133,261.72
  4. Step 4: Simplify right side
    221,946.40x = 44,376,605,849.85
  5. Step 5: Solve for x
    x = 44,376,605,849.85/221,946.40
  6. Step 6: Final answer
    x = 199,942.90

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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.