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Finding the Fourth Proportional to 373,772.73, 515,773.09 and 208,188.02

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Solution

The fourth proportional to 373,772.73, 515,773.09 and 208,188.02 is: 287,280.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    373,772.73 : 515,773.09 = 208,188.02 : x
  2. Step 2: Convert to fraction form
    373,772.73/515,773.09 = 208,188.02/x
  3. Step 3: Cross multiply
    373,772.73x = 515,773.09 × 208,188.02
  4. Step 4: Simplify right side
    373,772.73x = 107,377,775,797.52
  5. Step 5: Solve for x
    x = 107,377,775,797.52/373,772.73
  6. Step 6: Final answer
    x = 287,280.93

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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.