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Finding the Fourth Proportional to 589.75, 884.62 and 156.90

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Solution

The fourth proportional to 589.75, 884.62 and 156.90 is: 235.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    589.75 : 884.62 = 156.90 : x
  2. Step 2: Convert to fraction form
    589.75/884.62 = 156.90/x
  3. Step 3: Cross multiply
    589.75x = 884.62 × 156.90
  4. Step 4: Simplify right side
    589.75x = 138,796.09
  5. Step 5: Solve for x
    x = 138,796.09/589.75
  6. Step 6: Final answer
    x = 235.35

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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.