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Finding the Third Proportional to 139,432 and 305,594

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Solution

The third proportional to 139,432 and 305,594 is: 669,772.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,432 : 305,594 = 305,594 : x
  2. Step 2: Convert to fraction form
    139,432/305,594 = 305,594/x
  3. Step 3: Cross multiply
    139,432x = 305,594 × 305,594
  4. Step 4: Simplify right side
    139,432x = 93,387,692,836
  5. Step 5: Solve for x
    x = 93,387,692,836/139,432
  6. Step 6: Final answer
    x = 669,772.31

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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.