Home / 378,124.50-521,822.79-208,369.56

Finding the Fourth Proportional to 378,124.50, 521,822.79 and 208,369.56

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Solution

The fourth proportional to 378,124.50, 521,822.79 and 208,369.56 is: 287,556.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    378,124.50 : 521,822.79 = 208,369.56 : x
  2. Step 2: Convert to fraction form
    378,124.50/521,822.79 = 208,369.56/x
  3. Step 3: Cross multiply
    378,124.50x = 521,822.79 × 208,369.56
  4. Step 4: Simplify right side
    378,124.50x = 108,731,985,150.27
  5. Step 5: Solve for x
    x = 108,731,985,150.27/378,124.50
  6. Step 6: Final answer
    x = 287,556.04

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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.