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Finding the Third Proportional to 130.63 and 261.25

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Solution

The third proportional to 130.63 and 261.25 is: 522.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    130.63 : 261.25 = 261.25 : x
  2. Step 2: Convert to fraction form
    130.63/261.25 = 261.25/x
  3. Step 3: Cross multiply
    130.63x = 261.25 × 261.25
  4. Step 4: Simplify right side
    130.63x = 68,251.56
  5. Step 5: Solve for x
    x = 68,251.56/130.63
  6. Step 6: Final answer
    x = 522.50

Related Problems

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Half scale
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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.