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Finding the Fourth Proportional to 890.75, 1,335.96 and 241.40

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Solution

The fourth proportional to 890.75, 1,335.96 and 241.40 is: 362.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    890.75 : 1,335.96 = 241.40 : x
  2. Step 2: Convert to fraction form
    890.75/1,335.96 = 241.40/x
  3. Step 3: Cross multiply
    890.75x = 1,335.96 × 241.40
  4. Step 4: Simplify right side
    890.75x = 322,494.06
  5. Step 5: Solve for x
    x = 322,494.06/890.75
  6. Step 6: Final answer
    x = 362.05

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.