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Finding the Third Proportional to 176,528 and 388,687

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Solution

The third proportional to 176,528 and 388,687 is: 855,827.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    176,528 : 388,687 = 388,687 : x
  2. Step 2: Convert to fraction form
    176,528/388,687 = 388,687/x
  3. Step 3: Cross multiply
    176,528x = 388,687 × 388,687
  4. Step 4: Simplify right side
    176,528x = 151,077,583,969
  5. Step 5: Solve for x
    x = 151,077,583,969/176,528
  6. Step 6: Final answer
    x = 855,827.88

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Why These Related Problems?

These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.