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Finding the Fourth Proportional to 334.82, 504.74 and 312.52

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Solution

The fourth proportional to 334.82, 504.74 and 312.52 is: 471.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    334.82 : 504.74 = 312.52 : x
  2. Step 2: Convert to fraction form
    334.82/504.74 = 312.52/x
  3. Step 3: Cross multiply
    334.82x = 504.74 × 312.52
  4. Step 4: Simplify right side
    334.82x = 157,739.78
  5. Step 5: Solve for x
    x = 157,739.78/334.82
  6. Step 6: Final answer
    x = 471.12

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.