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Finding the Fourth Proportional to 519,155.58, 778,398.57 and 203,644.38

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Solution

The fourth proportional to 519,155.58, 778,398.57 and 203,644.38 is: 305,335.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    519,155.58 : 778,398.57 = 203,644.38 : x
  2. Step 2: Convert to fraction form
    519,155.58/778,398.57 = 203,644.38/x
  3. Step 3: Cross multiply
    519,155.58x = 778,398.57 × 203,644.38
  4. Step 4: Simplify right side
    519,155.58x = 158,516,494,180.54
  5. Step 5: Solve for x
    x = 158,516,494,180.54/519,155.58
  6. Step 6: Final answer
    x = 305,335.24

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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.