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Finding the Fourth Proportional to 589.10, 883.70 and 156.25

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Solution

The fourth proportional to 589.10, 883.70 and 156.25 is: 234.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    589.10 : 883.70 = 156.25 : x
  2. Step 2: Convert to fraction form
    589.10/883.70 = 156.25/x
  3. Step 3: Cross multiply
    589.10x = 883.70 × 156.25
  4. Step 4: Simplify right side
    589.10x = 138,078.13
  5. Step 5: Solve for x
    x = 138,078.13/589.10
  6. Step 6: Final answer
    x = 234.39

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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.