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Finding the Third Proportional to 231,669 and 369,985

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Solution

The third proportional to 231,669 and 369,985 is: 590,881.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,669 : 369,985 = 369,985 : x
  2. Step 2: Convert to fraction form
    231,669/369,985 = 369,985/x
  3. Step 3: Cross multiply
    231,669x = 369,985 × 369,985
  4. Step 4: Simplify right side
    231,669x = 136,888,900,225
  5. Step 5: Solve for x
    x = 136,888,900,225/231,669
  6. Step 6: Final answer
    x = 590,881.39

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Why These Related Problems?

These problems maintain the same ratio (1.60) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.