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Finding the Fourth Proportional to 531.64, 797.46 and 146.89

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Solution

The fourth proportional to 531.64, 797.46 and 146.89 is: 220.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    531.64 : 797.46 = 146.89 : x
  2. Step 2: Convert to fraction form
    531.64/797.46 = 146.89/x
  3. Step 3: Cross multiply
    531.64x = 797.46 × 146.89
  4. Step 4: Simplify right side
    531.64x = 117,138.90
  5. Step 5: Solve for x
    x = 117,138.90/531.64
  6. Step 6: Final answer
    x = 220.34

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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.