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Finding the Third Proportional to 69,688 and 151,808

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Solution

The third proportional to 69,688 and 151,808 is: 330,697.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,688 : 151,808 = 151,808 : x
  2. Step 2: Convert to fraction form
    69,688/151,808 = 151,808/x
  3. Step 3: Cross multiply
    69,688x = 151,808 × 151,808
  4. Step 4: Simplify right side
    69,688x = 23,045,668,864
  5. Step 5: Solve for x
    x = 23,045,668,864/69,688
  6. Step 6: Final answer
    x = 330,697.81

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.