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Finding the Fourth Proportional to 223,605.60, 335,116.80 and 90,376.80

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Solution

The fourth proportional to 223,605.60, 335,116.80 and 90,376.80 is: 135,447.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,605.60 : 335,116.80 = 90,376.80 : x
  2. Step 2: Convert to fraction form
    223,605.60/335,116.80 = 90,376.80/x
  3. Step 3: Cross multiply
    223,605.60x = 335,116.80 × 90,376.80
  4. Step 4: Simplify right side
    223,605.60x = 30,286,784,010.24
  5. Step 5: Solve for x
    x = 30,286,784,010.24/223,605.60
  6. Step 6: Final answer
    x = 135,447.34

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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.