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Finding the Third Proportional to 315,652 and 425,282

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Solution

The third proportional to 315,652 and 425,282 is: 572,987.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,652 : 425,282 = 425,282 : x
  2. Step 2: Convert to fraction form
    315,652/425,282 = 425,282/x
  3. Step 3: Cross multiply
    315,652x = 425,282 × 425,282
  4. Step 4: Simplify right side
    315,652x = 180,864,779,524
  5. Step 5: Solve for x
    x = 180,864,779,524/315,652
  6. Step 6: Final answer
    x = 572,987.91

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Why These Related Problems?

These problems maintain the same ratio (1.35) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.