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Finding the Fourth Proportional to 531.96, 798.30 and 243.60

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Solution

The fourth proportional to 531.96, 798.30 and 243.60 is: 365.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    531.96 : 798.30 = 243.60 : x
  2. Step 2: Convert to fraction form
    531.96/798.30 = 243.60/x
  3. Step 3: Cross multiply
    531.96x = 798.30 × 243.60
  4. Step 4: Simplify right side
    531.96x = 194,465.88
  5. Step 5: Solve for x
    x = 194,465.88/531.96
  6. Step 6: Final answer
    x = 365.56

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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.