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Finding the Fourth Proportional to 534.82, 738.04 and 313.88

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Solution

The fourth proportional to 534.82, 738.04 and 313.88 is: 433.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    534.82 : 738.04 = 313.88 : x
  2. Step 2: Convert to fraction form
    534.82/738.04 = 313.88/x
  3. Step 3: Cross multiply
    534.82x = 738.04 × 313.88
  4. Step 4: Simplify right side
    534.82x = 231,656.00
  5. Step 5: Solve for x
    x = 231,656.00/534.82
  6. Step 6: Final answer
    x = 433.15

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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.