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Finding the Fourth Proportional to 491.63, 737.90 and 248.33

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Solution

The fourth proportional to 491.63, 737.90 and 248.33 is: 372.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    491.63 : 737.90 = 248.33 : x
  2. Step 2: Convert to fraction form
    491.63/737.90 = 248.33/x
  3. Step 3: Cross multiply
    491.63x = 737.90 × 248.33
  4. Step 4: Simplify right side
    491.63x = 183,242.87
  5. Step 5: Solve for x
    x = 183,242.87/491.63
  6. Step 6: Final answer
    x = 372.72

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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.