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Finding the Third Proportional to 81,818.50 and 176,547.50

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Solution

The third proportional to 81,818.50 and 176,547.50 is: 380,953.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,818.50 : 176,547.50 = 176,547.50 : x
  2. Step 2: Convert to fraction form
    81,818.50/176,547.50 = 176,547.50/x
  3. Step 3: Cross multiply
    81,818.50x = 176,547.50 × 176,547.50
  4. Step 4: Simplify right side
    81,818.50x = 31,169,019,756.25
  5. Step 5: Solve for x
    x = 31,169,019,756.25/81,818.50
  6. Step 6: Final answer
    x = 380,953.20

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.