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Finding the Fourth Proportional to 345,472.66, 518,104.36 and 120,791.22

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Solution

The fourth proportional to 345,472.66, 518,104.36 and 120,791.22 is: 181,150.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    345,472.66 : 518,104.36 = 120,791.22 : x
  2. Step 2: Convert to fraction form
    345,472.66/518,104.36 = 120,791.22/x
  3. Step 3: Cross multiply
    345,472.66x = 518,104.36 × 120,791.22
  4. Step 4: Simplify right side
    345,472.66x = 62,582,457,731.72
  5. Step 5: Solve for x
    x = 62,582,457,731.72/345,472.66
  6. Step 6: Final answer
    x = 181,150.25

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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.