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Finding the Fourth Proportional to 530.23, 791.88 and 460.30

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Solution

The fourth proportional to 530.23, 791.88 and 460.30 is: 687.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    530.23 : 791.88 = 460.30 : x
  2. Step 2: Convert to fraction form
    530.23/791.88 = 460.30/x
  3. Step 3: Cross multiply
    530.23x = 791.88 × 460.30
  4. Step 4: Simplify right side
    530.23x = 364,496.80
  5. Step 5: Solve for x
    x = 364,496.80/530.23
  6. Step 6: Final answer
    x = 687.43

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.