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Finding the Fourth Proportional to 451.95, 624.12 and 352.64

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Solution

The fourth proportional to 451.95, 624.12 and 352.64 is: 486.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    451.95 : 624.12 = 352.64 : x
  2. Step 2: Convert to fraction form
    451.95/624.12 = 352.64/x
  3. Step 3: Cross multiply
    451.95x = 624.12 × 352.64
  4. Step 4: Simplify right side
    451.95x = 220,089.68
  5. Step 5: Solve for x
    x = 220,089.68/451.95
  6. Step 6: Final answer
    x = 486.98

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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.