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Finding the Fourth Proportional to 317.02, 437.54 and 234.55

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Solution

The fourth proportional to 317.02, 437.54 and 234.55 is: 323.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    317.02 : 437.54 = 234.55 : x
  2. Step 2: Convert to fraction form
    317.02/437.54 = 234.55/x
  3. Step 3: Cross multiply
    317.02x = 437.54 × 234.55
  4. Step 4: Simplify right side
    317.02x = 102,625.01
  5. Step 5: Solve for x
    x = 102,625.01/317.02
  6. Step 6: Final answer
    x = 323.72

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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.