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Finding the Fourth Proportional to 351.58, 484.95 and 268.63

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Solution

The fourth proportional to 351.58, 484.95 and 268.63 is: 370.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    351.58 : 484.95 = 268.63 : x
  2. Step 2: Convert to fraction form
    351.58/484.95 = 268.63/x
  3. Step 3: Cross multiply
    351.58x = 484.95 × 268.63
  4. Step 4: Simplify right side
    351.58x = 130,272.12
  5. Step 5: Solve for x
    x = 130,272.12/351.58
  6. Step 6: Final answer
    x = 370.53

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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.