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Finding the Third Proportional to 138,584 and 301,464

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Solution

The third proportional to 138,584 and 301,464 is: 655,779.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,584 : 301,464 = 301,464 : x
  2. Step 2: Convert to fraction form
    138,584/301,464 = 301,464/x
  3. Step 3: Cross multiply
    138,584x = 301,464 × 301,464
  4. Step 4: Simplify right side
    138,584x = 90,880,543,296
  5. Step 5: Solve for x
    x = 90,880,543,296/138,584
  6. Step 6: Final answer
    x = 655,779.48

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.