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Finding the Fourth Proportional to 469.32, 702.04 and 324.76

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Solution

The fourth proportional to 469.32, 702.04 and 324.76 is: 485.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    469.32 : 702.04 = 324.76 : x
  2. Step 2: Convert to fraction form
    469.32/702.04 = 324.76/x
  3. Step 3: Cross multiply
    469.32x = 702.04 × 324.76
  4. Step 4: Simplify right side
    469.32x = 227,994.51
  5. Step 5: Solve for x
    x = 227,994.51/469.32
  6. Step 6: Final answer
    x = 485.80

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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.