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Finding the Fourth Proportional to 589.13, 883.25 and 315.55

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Solution

The fourth proportional to 589.13, 883.25 and 315.55 is: 473.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    589.13 : 883.25 = 315.55 : x
  2. Step 2: Convert to fraction form
    589.13/883.25 = 315.55/x
  3. Step 3: Cross multiply
    589.13x = 883.25 × 315.55
  4. Step 4: Simplify right side
    589.13x = 278,709.54
  5. Step 5: Solve for x
    x = 278,709.54/589.13
  6. Step 6: Final answer
    x = 473.09

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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.