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Finding the Fourth Proportional to 530.90, 796.01 and 287.36

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Solution

The fourth proportional to 530.90, 796.01 and 287.36 is: 430.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    530.90 : 796.01 = 287.36 : x
  2. Step 2: Convert to fraction form
    530.90/796.01 = 287.36/x
  3. Step 3: Cross multiply
    530.90x = 796.01 × 287.36
  4. Step 4: Simplify right side
    530.90x = 228,736.02
  5. Step 5: Solve for x
    x = 228,736.02/530.90
  6. Step 6: Final answer
    x = 430.85

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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.