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Finding the Fourth Proportional to 589.16, 884.20 and 315.48

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Solution

The fourth proportional to 589.16, 884.20 and 315.48 is: 473.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    589.16 : 884.20 = 315.48 : x
  2. Step 2: Convert to fraction form
    589.16/884.20 = 315.48/x
  3. Step 3: Cross multiply
    589.16x = 884.20 × 315.48
  4. Step 4: Simplify right side
    589.16x = 278,946.63
  5. Step 5: Solve for x
    x = 278,946.63/589.16
  6. Step 6: Final answer
    x = 473.46

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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.