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Finding the Fourth Proportional to 345,448.97, 518,173.46 and 134,939.28

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Solution

The fourth proportional to 345,448.97, 518,173.46 and 134,939.28 is: 202,408.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    345,448.97 : 518,173.46 = 134,939.28 : x
  2. Step 2: Convert to fraction form
    345,448.97/518,173.46 = 134,939.28/x
  3. Step 3: Cross multiply
    345,448.97x = 518,173.46 × 134,939.28
  4. Step 4: Simplify right side
    345,448.97x = 69,921,953,607.51
  5. Step 5: Solve for x
    x = 69,921,953,607.51/345,448.97
  6. Step 6: Final answer
    x = 202,408.92

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.