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Finding the Fourth Proportional to 890.41, 1,335.47 and 241.00

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Solution

The fourth proportional to 890.41, 1,335.47 and 241.00 is: 361.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    890.41 : 1,335.47 = 241.00 : x
  2. Step 2: Convert to fraction form
    890.41/1,335.47 = 241.00/x
  3. Step 3: Cross multiply
    890.41x = 1,335.47 × 241.00
  4. Step 4: Simplify right side
    890.41x = 321,842.19
  5. Step 5: Solve for x
    x = 321,842.19/890.41
  6. Step 6: Final answer
    x = 361.45

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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.