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Finding the Third Proportional to 307,552 and 661,088

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Solution

The third proportional to 307,552 and 661,088 is: 1,421,019.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    307,552 : 661,088 = 661,088 : x
  2. Step 2: Convert to fraction form
    307,552/661,088 = 661,088/x
  3. Step 3: Cross multiply
    307,552x = 661,088 × 661,088
  4. Step 4: Simplify right side
    307,552x = 437,037,343,744
  5. Step 5: Solve for x
    x = 437,037,343,744/307,552
  6. Step 6: Final answer
    x = 1,421,019.35

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.