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Finding the Fourth Proportional to 531.73, 797.71 and 161.50

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Solution

The fourth proportional to 531.73, 797.71 and 161.50 is: 242.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    531.73 : 797.71 = 161.50 : x
  2. Step 2: Convert to fraction form
    531.73/797.71 = 161.50/x
  3. Step 3: Cross multiply
    531.73x = 797.71 × 161.50
  4. Step 4: Simplify right side
    531.73x = 128,829.36
  5. Step 5: Solve for x
    x = 128,829.36/531.73
  6. Step 6: Final answer
    x = 242.28

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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.