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Finding the Third Proportional to 219.63 and 469.63

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Solution

The third proportional to 219.63 and 469.63 is: 1,004.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    219.63 : 469.63 = 469.63 : x
  2. Step 2: Convert to fraction form
    219.63/469.63 = 469.63/x
  3. Step 3: Cross multiply
    219.63x = 469.63 × 469.63
  4. Step 4: Simplify right side
    219.63x = 220,547.64
  5. Step 5: Solve for x
    x = 220,547.64/219.63
  6. Step 6: Final answer
    x = 1,004.20

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Why These Related Problems?

These problems maintain the same ratio (2.14) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.