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Finding the Fourth Proportional to 536.04, 803.44 and 261.72

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Solution

The fourth proportional to 536.04, 803.44 and 261.72 is: 392.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    536.04 : 803.44 = 261.72 : x
  2. Step 2: Convert to fraction form
    536.04/803.44 = 261.72/x
  3. Step 3: Cross multiply
    536.04x = 803.44 × 261.72
  4. Step 4: Simplify right side
    536.04x = 210,276.32
  5. Step 5: Solve for x
    x = 210,276.32/536.04
  6. Step 6: Final answer
    x = 392.28

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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.