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Finding the Fourth Proportional to 379,551.30, 523,791.93 and 207,478.77

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Solution

The fourth proportional to 379,551.30, 523,791.93 and 207,478.77 is: 286,326.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    379,551.30 : 523,791.93 = 207,478.77 : x
  2. Step 2: Convert to fraction form
    379,551.30/523,791.93 = 207,478.77/x
  3. Step 3: Cross multiply
    379,551.30x = 523,791.93 × 207,478.77
  4. Step 4: Simplify right side
    379,551.30x = 108,675,705,372.33
  5. Step 5: Solve for x
    x = 108,675,705,372.33/379,551.30
  6. Step 6: Final answer
    x = 286,326.79

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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.