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Finding the Third Proportional to 30,340 and 47,492

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Solution

The third proportional to 30,340 and 47,492 is: 74,340.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,340 : 47,492 = 47,492 : x
  2. Step 2: Convert to fraction form
    30,340/47,492 = 47,492/x
  3. Step 3: Cross multiply
    30,340x = 47,492 × 47,492
  4. Step 4: Simplify right side
    30,340x = 2,255,490,064
  5. Step 5: Solve for x
    x = 2,255,490,064/30,340
  6. Step 6: Final answer
    x = 74,340.48

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Why These Related Problems?

These problems maintain the same ratio (1.57) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.