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Finding the Third Proportional to 149,520 and 326,560

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Solution

The third proportional to 149,520 and 326,560 is: 713,225.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,520 : 326,560 = 326,560 : x
  2. Step 2: Convert to fraction form
    149,520/326,560 = 326,560/x
  3. Step 3: Cross multiply
    149,520x = 326,560 × 326,560
  4. Step 4: Simplify right side
    149,520x = 106,641,433,600
  5. Step 5: Solve for x
    x = 106,641,433,600/149,520
  6. Step 6: Final answer
    x = 713,225.21

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.