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Finding the Third Proportional to 180,900 and 265,929.75

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Solution

The third proportional to 180,900 and 265,929.75 is: 390,926.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    180,900 : 265,929.75 = 265,929.75 : x
  2. Step 2: Convert to fraction form
    180,900/265,929.75 = 265,929.75/x
  3. Step 3: Cross multiply
    180,900x = 265,929.75 × 265,929.75
  4. Step 4: Simplify right side
    180,900x = 70,718,631,935.06
  5. Step 5: Solve for x
    x = 70,718,631,935.06/180,900
  6. Step 6: Final answer
    x = 390,926.66

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Why These Related Problems?

These problems maintain the same ratio (1.47) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.