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Finding the Third Proportional to 308,161.50 and 432,686.25

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Solution

The third proportional to 308,161.50 and 432,686.25 is: 607,530.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    308,161.50 : 432,686.25 = 432,686.25 : x
  2. Step 2: Convert to fraction form
    308,161.50/432,686.25 = 432,686.25/x
  3. Step 3: Cross multiply
    308,161.50x = 432,686.25 × 432,686.25
  4. Step 4: Simplify right side
    308,161.50x = 187,217,390,939.06
  5. Step 5: Solve for x
    x = 187,217,390,939.06/308,161.50
  6. Step 6: Final answer
    x = 607,530.11

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.