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Finding the Fourth Proportional to 378,333.41, 522,104.15 and 208,573.61

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Solution

The fourth proportional to 378,333.41, 522,104.15 and 208,573.61 is: 287,833.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    378,333.41 : 522,104.15 = 208,573.61 : x
  2. Step 2: Convert to fraction form
    378,333.41/522,104.15 = 208,573.61/x
  3. Step 3: Cross multiply
    378,333.41x = 522,104.15 × 208,573.61
  4. Step 4: Simplify right side
    378,333.41x = 108,897,146,318.61
  5. Step 5: Solve for x
    x = 108,897,146,318.61/378,333.41
  6. Step 6: Final answer
    x = 287,833.81

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1.5x scale

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.