Home / 221,188.20-331,523.10-165,719.40

Finding the Fourth Proportional to 221,188.20, 331,523.10 and 165,719.40

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Solution

The fourth proportional to 221,188.20, 331,523.10 and 165,719.40 is: 248,384.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,188.20 : 331,523.10 = 165,719.40 : x
  2. Step 2: Convert to fraction form
    221,188.20/331,523.10 = 165,719.40/x
  3. Step 3: Cross multiply
    221,188.20x = 331,523.10 × 165,719.40
  4. Step 4: Simplify right side
    221,188.20x = 54,939,809,218.14
  5. Step 5: Solve for x
    x = 54,939,809,218.14/221,188.20
  6. Step 6: Final answer
    x = 248,384.90

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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.