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Finding the Third Proportional to 159,681 and 266,121

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Solution

The third proportional to 159,681 and 266,121 is: 443,511.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,681 : 266,121 = 266,121 : x
  2. Step 2: Convert to fraction form
    159,681/266,121 = 266,121/x
  3. Step 3: Cross multiply
    159,681x = 266,121 × 266,121
  4. Step 4: Simplify right side
    159,681x = 70,820,386,641
  5. Step 5: Solve for x
    x = 70,820,386,641/159,681
  6. Step 6: Final answer
    x = 443,511.67

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Why These Related Problems?

These problems maintain the same ratio (1.67) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.