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Finding the Third Proportional to 136,432 and 210,480

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Solution

The third proportional to 136,432 and 210,480 is: 324,717.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,432 : 210,480 = 210,480 : x
  2. Step 2: Convert to fraction form
    136,432/210,480 = 210,480/x
  3. Step 3: Cross multiply
    136,432x = 210,480 × 210,480
  4. Step 4: Simplify right side
    136,432x = 44,301,830,400
  5. Step 5: Solve for x
    x = 44,301,830,400/136,432
  6. Step 6: Final answer
    x = 324,717.30

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Why These Related Problems?

These problems maintain the same ratio (1.54) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.