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Finding the Fourth Proportional to 454.54, 627.26 and 258.06

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Solution

The fourth proportional to 454.54, 627.26 and 258.06 is: 356.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    454.54 : 627.26 = 258.06 : x
  2. Step 2: Convert to fraction form
    454.54/627.26 = 258.06/x
  3. Step 3: Cross multiply
    454.54x = 627.26 × 258.06
  4. Step 4: Simplify right side
    454.54x = 161,870.72
  5. Step 5: Solve for x
    x = 161,870.72/454.54
  6. Step 6: Final answer
    x = 356.12

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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.