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Finding the Fourth Proportional to 469.36, 702.60 and 252.40

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Solution

The fourth proportional to 469.36, 702.60 and 252.40 is: 377.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    469.36 : 702.60 = 252.40 : x
  2. Step 2: Convert to fraction form
    469.36/702.60 = 252.40/x
  3. Step 3: Cross multiply
    469.36x = 702.60 × 252.40
  4. Step 4: Simplify right side
    469.36x = 177,336.24
  5. Step 5: Solve for x
    x = 177,336.24/469.36
  6. Step 6: Final answer
    x = 377.83

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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.