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Finding the Third Proportional to 143,031 and 308,541

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Solution

The third proportional to 143,031 and 308,541 is: 665,572.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,031 : 308,541 = 308,541 : x
  2. Step 2: Convert to fraction form
    143,031/308,541 = 308,541/x
  3. Step 3: Cross multiply
    143,031x = 308,541 × 308,541
  4. Step 4: Simplify right side
    143,031x = 95,197,548,681
  5. Step 5: Solve for x
    x = 95,197,548,681/143,031
  6. Step 6: Final answer
    x = 665,572.84

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.