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Finding the Fourth Proportional to 223,653.60, 335,480.40 and 221,685.30

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Solution

The fourth proportional to 223,653.60, 335,480.40 and 221,685.30 is: 332,527.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,653.60 : 335,480.40 = 221,685.30 : x
  2. Step 2: Convert to fraction form
    223,653.60/335,480.40 = 221,685.30/x
  3. Step 3: Cross multiply
    223,653.60x = 335,480.40 × 221,685.30
  4. Step 4: Simplify right side
    223,653.60x = 74,371,073,118.12
  5. Step 5: Solve for x
    x = 74,371,073,118.12/223,653.60
  6. Step 6: Final answer
    x = 332,527.95

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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.