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Finding the Fourth Proportional to 223,894.90, 335,842.35 and 221,821.30

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Solution

The fourth proportional to 223,894.90, 335,842.35 and 221,821.30 is: 332,731.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,894.90 : 335,842.35 = 221,821.30 : x
  2. Step 2: Convert to fraction form
    223,894.90/335,842.35 = 221,821.30/x
  3. Step 3: Cross multiply
    223,894.90x = 335,842.35 × 221,821.30
  4. Step 4: Simplify right side
    223,894.90x = 74,496,986,672.06
  5. Step 5: Solve for x
    x = 74,496,986,672.06/223,894.90
  6. Step 6: Final answer
    x = 332,731.95

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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.