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Finding the Fourth Proportional to 291,745.54, 437,618.37 and 92,086.09

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Solution

The fourth proportional to 291,745.54, 437,618.37 and 92,086.09 is: 138,129.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,745.54 : 437,618.37 = 92,086.09 : x
  2. Step 2: Convert to fraction form
    291,745.54/437,618.37 = 92,086.09/x
  3. Step 3: Cross multiply
    291,745.54x = 437,618.37 × 92,086.09
  4. Step 4: Simplify right side
    291,745.54x = 40,298,564,605.47
  5. Step 5: Solve for x
    x = 40,298,564,605.47/291,745.54
  6. Step 6: Final answer
    x = 138,129.15

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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.