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Finding the Fourth Proportional to 345,181.82, 517,795.11 and 108,533.66

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Solution

The fourth proportional to 345,181.82, 517,795.11 and 108,533.66 is: 162,807.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    345,181.82 : 517,795.11 = 108,533.66 : x
  2. Step 2: Convert to fraction form
    345,181.82/517,795.11 = 108,533.66/x
  3. Step 3: Cross multiply
    345,181.82x = 517,795.11 × 108,533.66
  4. Step 4: Simplify right side
    345,181.82x = 56,198,198,418.40
  5. Step 5: Solve for x
    x = 56,198,198,418.40/345,181.82
  6. Step 6: Final answer
    x = 162,807.53

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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.