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Finding the Fourth Proportional to 453.82, 679.86 and 270.67

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Solution

The fourth proportional to 453.82, 679.86 and 270.67 is: 405.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    453.82 : 679.86 = 270.67 : x
  2. Step 2: Convert to fraction form
    453.82/679.86 = 270.67/x
  3. Step 3: Cross multiply
    453.82x = 679.86 × 270.67
  4. Step 4: Simplify right side
    453.82x = 184,017.71
  5. Step 5: Solve for x
    x = 184,017.71/453.82
  6. Step 6: Final answer
    x = 405.49

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.