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Finding the Fourth Proportional to 536.36, 743.63 and 525.80

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Solution

The fourth proportional to 536.36, 743.63 and 525.80 is: 728.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    536.36 : 743.63 = 525.80 : x
  2. Step 2: Convert to fraction form
    536.36/743.63 = 525.80/x
  3. Step 3: Cross multiply
    536.36x = 743.63 × 525.80
  4. Step 4: Simplify right side
    536.36x = 391,000.65
  5. Step 5: Solve for x
    x = 391,000.65/536.36
  6. Step 6: Final answer
    x = 728.99

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Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.