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Finding the Fourth Proportional to 530.58, 796.37 and 287.30

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Solution

The fourth proportional to 530.58, 796.37 and 287.30 is: 431.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    530.58 : 796.37 = 287.30 : x
  2. Step 2: Convert to fraction form
    530.58/796.37 = 287.30/x
  3. Step 3: Cross multiply
    530.58x = 796.37 × 287.30
  4. Step 4: Simplify right side
    530.58x = 228,791.68
  5. Step 5: Solve for x
    x = 228,791.68/530.58
  6. Step 6: Final answer
    x = 431.21

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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.