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Finding the Fourth Proportional to 451.95, 624.42 and 341.79

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Solution

The fourth proportional to 451.95, 624.42 and 341.79 is: 472.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    451.95 : 624.42 = 341.79 : x
  2. Step 2: Convert to fraction form
    451.95/624.42 = 341.79/x
  3. Step 3: Cross multiply
    451.95x = 624.42 × 341.79
  4. Step 4: Simplify right side
    451.95x = 213,420.51
  5. Step 5: Solve for x
    x = 213,420.51/451.95
  6. Step 6: Final answer
    x = 472.22

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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.