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Finding the Third Proportional to 249,720.75 and 353,349

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Solution

The third proportional to 249,720.75 and 353,349 is: 499,980.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    249,720.75 : 353,349 = 353,349 : x
  2. Step 2: Convert to fraction form
    249,720.75/353,349 = 353,349/x
  3. Step 3: Cross multiply
    249,720.75x = 353,349 × 353,349
  4. Step 4: Simplify right side
    249,720.75x = 124,855,515,801
  5. Step 5: Solve for x
    x = 124,855,515,801/249,720.75
  6. Step 6: Final answer
    x = 499,980.54

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Why These Related Problems?

These problems maintain the same ratio (1.41) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.