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Finding the Third Proportional to 154,629 and 325,854

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Solution

The third proportional to 154,629 and 325,854 is: 686,681.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,629 : 325,854 = 325,854 : x
  2. Step 2: Convert to fraction form
    154,629/325,854 = 325,854/x
  3. Step 3: Cross multiply
    154,629x = 325,854 × 325,854
  4. Step 4: Simplify right side
    154,629x = 106,180,829,316
  5. Step 5: Solve for x
    x = 106,180,829,316/154,629
  6. Step 6: Final answer
    x = 686,681.21

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Why These Related Problems?

These problems maintain the same ratio (2.11) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.