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Finding the Fourth Proportional to 251,483.71, 347,961.37 and 219,285.47

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Solution

The fourth proportional to 251,483.71, 347,961.37 and 219,285.47 is: 303,410.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,483.71 : 347,961.37 = 219,285.47 : x
  2. Step 2: Convert to fraction form
    251,483.71/347,961.37 = 219,285.47/x
  3. Step 3: Cross multiply
    251,483.71x = 347,961.37 × 219,285.47
  4. Step 4: Simplify right side
    251,483.71x = 76,302,872,562.29
  5. Step 5: Solve for x
    x = 76,302,872,562.29/251,483.71
  6. Step 6: Final answer
    x = 303,410.80

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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.