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Finding the Fourth Proportional to 591.81, 816.46 and 370.72

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Solution

The fourth proportional to 591.81, 816.46 and 370.72 is: 511.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    591.81 : 816.46 = 370.72 : x
  2. Step 2: Convert to fraction form
    591.81/816.46 = 370.72/x
  3. Step 3: Cross multiply
    591.81x = 816.46 × 370.72
  4. Step 4: Simplify right side
    591.81x = 302,678.05
  5. Step 5: Solve for x
    x = 302,678.05/591.81
  6. Step 6: Final answer
    x = 511.44

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.