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Finding the Fourth Proportional to 469.26, 702.81 and 225.32

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Solution

The fourth proportional to 469.26, 702.81 and 225.32 is: 337.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    469.26 : 702.81 = 225.32 : x
  2. Step 2: Convert to fraction form
    469.26/702.81 = 225.32/x
  3. Step 3: Cross multiply
    469.26x = 702.81 × 225.32
  4. Step 4: Simplify right side
    469.26x = 158,353.64
  5. Step 5: Solve for x
    x = 158,353.64/469.26
  6. Step 6: Final answer
    x = 337.45

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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.