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Finding the Third Proportional to 145,972.13 and 316,866.94

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Solution

The third proportional to 145,972.13 and 316,866.94 is: 687,834.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,972.13 : 316,866.94 = 316,866.94 : x
  2. Step 2: Convert to fraction form
    145,972.13/316,866.94 = 316,866.94/x
  3. Step 3: Cross multiply
    145,972.13x = 316,866.94 × 316,866.94
  4. Step 4: Simplify right side
    145,972.13x = 100,404,656,080.63
  5. Step 5: Solve for x
    x = 100,404,656,080.63/145,972.13
  6. Step 6: Final answer
    x = 687,834.45

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Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.