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Finding the Fourth Proportional to 536.08, 803.16 and 449.32

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Solution

The fourth proportional to 536.08, 803.16 and 449.32 is: 673.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    536.08 : 803.16 = 449.32 : x
  2. Step 2: Convert to fraction form
    536.08/803.16 = 449.32/x
  3. Step 3: Cross multiply
    536.08x = 803.16 × 449.32
  4. Step 4: Simplify right side
    536.08x = 360,875.85
  5. Step 5: Solve for x
    x = 360,875.85/536.08
  6. Step 6: Final answer
    x = 673.18

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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.