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Finding the Fourth Proportional to 531.88, 797.08 and 300.64

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Solution

The fourth proportional to 531.88, 797.08 and 300.64 is: 450.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    531.88 : 797.08 = 300.64 : x
  2. Step 2: Convert to fraction form
    531.88/797.08 = 300.64/x
  3. Step 3: Cross multiply
    531.88x = 797.08 × 300.64
  4. Step 4: Simplify right side
    531.88x = 239,634.13
  5. Step 5: Solve for x
    x = 239,634.13/531.88
  6. Step 6: Final answer
    x = 450.54

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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.