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Finding the Fourth Proportional to 379,602.52, 523,889.94 and 218,464.36

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Solution

The fourth proportional to 379,602.52, 523,889.94 and 218,464.36 is: 301,502.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    379,602.52 : 523,889.94 = 218,464.36 : x
  2. Step 2: Convert to fraction form
    379,602.52/523,889.94 = 218,464.36/x
  3. Step 3: Cross multiply
    379,602.52x = 523,889.94 × 218,464.36
  4. Step 4: Simplify right side
    379,602.52x = 114,451,280,452.54
  5. Step 5: Solve for x
    x = 114,451,280,452.54/379,602.52
  6. Step 6: Final answer
    x = 301,502.95

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.