Home / 221,443.14-331,665.30-102,864.94

Finding the Fourth Proportional to 221,443.14, 331,665.30 and 102,864.94

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Solution

The fourth proportional to 221,443.14, 331,665.30 and 102,864.94 is: 154,065.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,443.14 : 331,665.30 = 102,864.94 : x
  2. Step 2: Convert to fraction form
    221,443.14/331,665.30 = 102,864.94/x
  3. Step 3: Cross multiply
    221,443.14x = 331,665.30 × 102,864.94
  4. Step 4: Simplify right side
    221,443.14x = 34,116,731,441.74
  5. Step 5: Solve for x
    x = 34,116,731,441.74/221,443.14
  6. Step 6: Final answer
    x = 154,065.43

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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.