Home / 221,049.12-331,313.94-102,470.88

Finding the Fourth Proportional to 221,049.12, 331,313.94 and 102,470.88

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Solution

The fourth proportional to 221,049.12, 331,313.94 and 102,470.88 is: 153,585.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,049.12 : 331,313.94 = 102,470.88 : x
  2. Step 2: Convert to fraction form
    221,049.12/331,313.94 = 102,470.88/x
  3. Step 3: Cross multiply
    221,049.12x = 331,313.94 × 102,470.88
  4. Step 4: Simplify right side
    221,049.12x = 33,950,030,988.07
  5. Step 5: Solve for x
    x = 33,950,030,988.07/221,049.12
  6. Step 6: Final answer
    x = 153,585.91

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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.