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Finding the Third Proportional to 331,373.25 and 518,383.13

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Solution

The third proportional to 331,373.25 and 518,383.13 is: 810,931.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,373.25 : 518,383.13 = 518,383.13 : x
  2. Step 2: Convert to fraction form
    331,373.25/518,383.13 = 518,383.13/x
  3. Step 3: Cross multiply
    331,373.25x = 518,383.13 × 518,383.13
  4. Step 4: Simplify right side
    331,373.25x = 268,721,064,284.77
  5. Step 5: Solve for x
    x = 268,721,064,284.77/331,373.25
  6. Step 6: Final answer
    x = 810,931.67

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Why These Related Problems?

These problems maintain the same ratio (1.56) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.