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Finding the Third Proportional to 346.25 and 469.88

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Solution

The third proportional to 346.25 and 469.88 is: 637.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    346.25 : 469.88 = 469.88 : x
  2. Step 2: Convert to fraction form
    346.25/469.88 = 469.88/x
  3. Step 3: Cross multiply
    346.25x = 469.88 × 469.88
  4. Step 4: Simplify right side
    346.25x = 220,782.52
  5. Step 5: Solve for x
    x = 220,782.52/346.25
  6. Step 6: Final answer
    x = 637.64

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Why These Related Problems?

These problems maintain the same ratio (1.36) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.