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Finding the Fourth Proportional to 531.50, 797.41 and 189.58

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Solution

The fourth proportional to 531.50, 797.41 and 189.58 is: 284.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    531.50 : 797.41 = 189.58 : x
  2. Step 2: Convert to fraction form
    531.50/797.41 = 189.58/x
  3. Step 3: Cross multiply
    531.50x = 797.41 × 189.58
  4. Step 4: Simplify right side
    531.50x = 151,172.99
  5. Step 5: Solve for x
    x = 151,172.99/531.50
  6. Step 6: Final answer
    x = 284.43

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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.