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Finding the Third Proportional to 134,612 and 291,240

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Solution

The third proportional to 134,612 and 291,240 is: 630,112.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,612 : 291,240 = 291,240 : x
  2. Step 2: Convert to fraction form
    134,612/291,240 = 291,240/x
  3. Step 3: Cross multiply
    134,612x = 291,240 × 291,240
  4. Step 4: Simplify right side
    134,612x = 84,820,737,600
  5. Step 5: Solve for x
    x = 84,820,737,600/134,612
  6. Step 6: Final answer
    x = 630,112.75

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.