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Finding the Fourth Proportional to 491.49, 737.24 and 286.09

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Solution

The fourth proportional to 491.49, 737.24 and 286.09 is: 429.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    491.49 : 737.24 = 286.09 : x
  2. Step 2: Convert to fraction form
    491.49/737.24 = 286.09/x
  3. Step 3: Cross multiply
    491.49x = 737.24 × 286.09
  4. Step 4: Simplify right side
    491.49x = 210,913.72
  5. Step 5: Solve for x
    x = 210,913.72/491.49
  6. Step 6: Final answer
    x = 429.13

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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.