Home / 378,366.33-522,149.04-208,606.53

Finding the Fourth Proportional to 378,366.33, 522,149.04 and 208,606.53

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Solution

The fourth proportional to 378,366.33, 522,149.04 and 208,606.53 is: 287,878.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    378,366.33 : 522,149.04 = 208,606.53 : x
  2. Step 2: Convert to fraction form
    378,366.33/522,149.04 = 208,606.53/x
  3. Step 3: Cross multiply
    378,366.33x = 522,149.04 × 208,606.53
  4. Step 4: Simplify right side
    378,366.33x = 108,923,699,377.23
  5. Step 5: Solve for x
    x = 108,923,699,377.23/378,366.33
  6. Step 6: Final answer
    x = 287,878.94

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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.