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Finding the Fourth Proportional to 400,375.91, 600,388.91 and 119,827.55

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Solution

The fourth proportional to 400,375.91, 600,388.91 and 119,827.55 is: 179,688.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    400,375.91 : 600,388.91 = 119,827.55 : x
  2. Step 2: Convert to fraction form
    400,375.91/600,388.91 = 119,827.55/x
  3. Step 3: Cross multiply
    400,375.91x = 600,388.91 × 119,827.55
  4. Step 4: Simplify right side
    400,375.91x = 71,943,133,483.66
  5. Step 5: Solve for x
    x = 71,943,133,483.66/400,375.91
  6. Step 6: Final answer
    x = 179,688.97

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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.