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Finding the Fourth Proportional to 291,930.32, 437,892.81 and 92,250.68

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Solution

The fourth proportional to 291,930.32, 437,892.81 and 92,250.68 is: 138,375.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,930.32 : 437,892.81 = 92,250.68 : x
  2. Step 2: Convert to fraction form
    291,930.32/437,892.81 = 92,250.68/x
  3. Step 3: Cross multiply
    291,930.32x = 437,892.81 × 92,250.68
  4. Step 4: Simplify right side
    291,930.32x = 40,395,907,300.15
  5. Step 5: Solve for x
    x = 40,395,907,300.15/291,930.32
  6. Step 6: Final answer
    x = 138,375.17

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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.