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Finding the Fourth Proportional to 549.41, 758.27 and 313.36

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Solution

The fourth proportional to 549.41, 758.27 and 313.36 is: 432.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    549.41 : 758.27 = 313.36 : x
  2. Step 2: Convert to fraction form
    549.41/758.27 = 313.36/x
  3. Step 3: Cross multiply
    549.41x = 758.27 × 313.36
  4. Step 4: Simplify right side
    549.41x = 237,612.66
  5. Step 5: Solve for x
    x = 237,612.66/549.41
  6. Step 6: Final answer
    x = 432.48

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.