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Finding the Third Proportional to 153,508.50 and 330,345

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Solution

The third proportional to 153,508.50 and 330,345 is: 710,891.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,508.50 : 330,345 = 330,345 : x
  2. Step 2: Convert to fraction form
    153,508.50/330,345 = 330,345/x
  3. Step 3: Cross multiply
    153,508.50x = 330,345 × 330,345
  4. Step 4: Simplify right side
    153,508.50x = 109,127,819,025
  5. Step 5: Solve for x
    x = 109,127,819,025/153,508.50
  6. Step 6: Final answer
    x = 710,891.05

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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.