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Finding the Fourth Proportional to 491.41, 737.25 and 231.40

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Solution

The fourth proportional to 491.41, 737.25 and 231.40 is: 347.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    491.41 : 737.25 = 231.40 : x
  2. Step 2: Convert to fraction form
    491.41/737.25 = 231.40/x
  3. Step 3: Cross multiply
    491.41x = 737.25 × 231.40
  4. Step 4: Simplify right side
    491.41x = 170,599.65
  5. Step 5: Solve for x
    x = 170,599.65/491.41
  6. Step 6: Final answer
    x = 347.16

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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.