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Finding the Third Proportional to 64,710 and 141,531

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Solution

The third proportional to 64,710 and 141,531 is: 309,550.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,710 : 141,531 = 141,531 : x
  2. Step 2: Convert to fraction form
    64,710/141,531 = 141,531/x
  3. Step 3: Cross multiply
    64,710x = 141,531 × 141,531
  4. Step 4: Simplify right side
    64,710x = 20,031,023,961
  5. Step 5: Solve for x
    x = 20,031,023,961/64,710
  6. Step 6: Final answer
    x = 309,550.67

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.