Home / 221,216.20-331,565.10-165,747.40

Finding the Fourth Proportional to 221,216.20, 331,565.10 and 165,747.40

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Solution

The fourth proportional to 221,216.20, 331,565.10 and 165,747.40 is: 248,426.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,216.20 : 331,565.10 = 165,747.40 : x
  2. Step 2: Convert to fraction form
    221,216.20/331,565.10 = 165,747.40/x
  3. Step 3: Cross multiply
    221,216.20x = 331,565.10 × 165,747.40
  4. Step 4: Simplify right side
    221,216.20x = 54,956,053,255.74
  5. Step 5: Solve for x
    x = 54,956,053,255.74/221,216.20
  6. Step 6: Final answer
    x = 248,426.89

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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.