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Finding the Third Proportional to 128,524 and 192,030

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Solution

The third proportional to 128,524 and 192,030 is: 286,915.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,524 : 192,030 = 192,030 : x
  2. Step 2: Convert to fraction form
    128,524/192,030 = 192,030/x
  3. Step 3: Cross multiply
    128,524x = 192,030 × 192,030
  4. Step 4: Simplify right side
    128,524x = 36,875,520,900
  5. Step 5: Solve for x
    x = 36,875,520,900/128,524
  6. Step 6: Final answer
    x = 286,915.45

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.