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Finding the Fourth Proportional to 393.51, 588.87 and 370.16

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Solution

The fourth proportional to 393.51, 588.87 and 370.16 is: 553.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    393.51 : 588.87 = 370.16 : x
  2. Step 2: Convert to fraction form
    393.51/588.87 = 370.16/x
  3. Step 3: Cross multiply
    393.51x = 588.87 × 370.16
  4. Step 4: Simplify right side
    393.51x = 217,975.38
  5. Step 5: Solve for x
    x = 217,975.38/393.51
  6. Step 6: Final answer
    x = 553.92

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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.