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Finding the Fourth Proportional to 223,531.20, 335,181.60 and 83,217.60

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Solution

The fourth proportional to 223,531.20, 335,181.60 and 83,217.60 is: 124,783.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,531.20 : 335,181.60 = 83,217.60 : x
  2. Step 2: Convert to fraction form
    223,531.20/335,181.60 = 83,217.60/x
  3. Step 3: Cross multiply
    223,531.20x = 335,181.60 × 83,217.60
  4. Step 4: Simplify right side
    223,531.20x = 27,893,008,316.16
  5. Step 5: Solve for x
    x = 27,893,008,316.16/223,531.20
  6. Step 6: Final answer
    x = 124,783.51

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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.