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Finding the Fourth Proportional to 491.27, 737.23 and 318.01

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Solution

The fourth proportional to 491.27, 737.23 and 318.01 is: 477.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    491.27 : 737.23 = 318.01 : x
  2. Step 2: Convert to fraction form
    491.27/737.23 = 318.01/x
  3. Step 3: Cross multiply
    491.27x = 737.23 × 318.01
  4. Step 4: Simplify right side
    491.27x = 234,447.83
  5. Step 5: Solve for x
    x = 234,447.83/491.27
  6. Step 6: Final answer
    x = 477.23

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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.