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Finding the Fourth Proportional to 891.61, 1,337.18 and 242.19

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Solution

The fourth proportional to 891.61, 1,337.18 and 242.19 is: 363.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    891.61 : 1,337.18 = 242.19 : x
  2. Step 2: Convert to fraction form
    891.61/1,337.18 = 242.19/x
  3. Step 3: Cross multiply
    891.61x = 1,337.18 × 242.19
  4. Step 4: Simplify right side
    891.61x = 323,850.41
  5. Step 5: Solve for x
    x = 323,850.41/891.61
  6. Step 6: Final answer
    x = 363.22

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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.