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Finding the Fourth Proportional to 223,583.60, 335,116.20 and 90,376.40

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Solution

The fourth proportional to 223,583.60, 335,116.20 and 90,376.40 is: 135,459.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,583.60 : 335,116.20 = 90,376.40 : x
  2. Step 2: Convert to fraction form
    223,583.60/335,116.20 = 90,376.40/x
  3. Step 3: Cross multiply
    223,583.60x = 335,116.20 × 90,376.40
  4. Step 4: Simplify right side
    223,583.60x = 30,286,595,737.68
  5. Step 5: Solve for x
    x = 30,286,595,737.68/223,583.60
  6. Step 6: Final answer
    x = 135,459.83

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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.