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Finding the Third Proportional to 30,445 and 65,426

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Solution

The third proportional to 30,445 and 65,426 is: 140,599.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,445 : 65,426 = 65,426 : x
  2. Step 2: Convert to fraction form
    30,445/65,426 = 65,426/x
  3. Step 3: Cross multiply
    30,445x = 65,426 × 65,426
  4. Step 4: Simplify right side
    30,445x = 4,280,561,476
  5. Step 5: Solve for x
    x = 4,280,561,476/30,445
  6. Step 6: Final answer
    x = 140,599.82

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.