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Finding the Third Proportional to 118,488 and 260,988

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Solution

The third proportional to 118,488 and 260,988 is: 574,866.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,488 : 260,988 = 260,988 : x
  2. Step 2: Convert to fraction form
    118,488/260,988 = 260,988/x
  3. Step 3: Cross multiply
    118,488x = 260,988 × 260,988
  4. Step 4: Simplify right side
    118,488x = 68,114,736,144
  5. Step 5: Solve for x
    x = 68,114,736,144/118,488
  6. Step 6: Final answer
    x = 574,866.11

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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.