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Finding the Third Proportional to 88,368 and 189,920

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Solution

The third proportional to 88,368 and 189,920 is: 408,174.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,368 : 189,920 = 189,920 : x
  2. Step 2: Convert to fraction form
    88,368/189,920 = 189,920/x
  3. Step 3: Cross multiply
    88,368x = 189,920 × 189,920
  4. Step 4: Simplify right side
    88,368x = 36,069,606,400
  5. Step 5: Solve for x
    x = 36,069,606,400/88,368
  6. Step 6: Final answer
    x = 408,174.98

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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.