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Finding the Fourth Proportional to 468.21, 702.63 and 323.67

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Solution

The fourth proportional to 468.21, 702.63 and 323.67 is: 485.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    468.21 : 702.63 = 323.67 : x
  2. Step 2: Convert to fraction form
    468.21/702.63 = 323.67/x
  3. Step 3: Cross multiply
    468.21x = 702.63 × 323.67
  4. Step 4: Simplify right side
    468.21x = 227,420.25
  5. Step 5: Solve for x
    x = 227,420.25/468.21
  6. Step 6: Final answer
    x = 485.72

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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.