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Finding the Fourth Proportional to 223,396.67, 335,261.12 and 90,278.08

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Solution

The fourth proportional to 223,396.67, 335,261.12 and 90,278.08 is: 135,484.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,396.67 : 335,261.12 = 90,278.08 : x
  2. Step 2: Convert to fraction form
    223,396.67/335,261.12 = 90,278.08/x
  3. Step 3: Cross multiply
    223,396.67x = 335,261.12 × 90,278.08
  4. Step 4: Simplify right side
    223,396.67x = 30,266,730,212.25
  5. Step 5: Solve for x
    x = 30,266,730,212.25/223,396.67
  6. Step 6: Final answer
    x = 135,484.25

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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.