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Finding the Fourth Proportional to 291,933.78, 437,898.03 and 92,254.20

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Solution

The fourth proportional to 291,933.78, 437,898.03 and 92,254.20 is: 138,380.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,933.78 : 437,898.03 = 92,254.20 : x
  2. Step 2: Convert to fraction form
    291,933.78/437,898.03 = 92,254.20/x
  3. Step 3: Cross multiply
    291,933.78x = 437,898.03 × 92,254.20
  4. Step 4: Simplify right side
    291,933.78x = 40,397,932,439.23
  5. Step 5: Solve for x
    x = 40,397,932,439.23/291,933.78
  6. Step 6: Final answer
    x = 138,380.47

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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.