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Finding the Fourth Proportional to 378,372.69, 522,150.87 and 208,606.83

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Solution

The fourth proportional to 378,372.69, 522,150.87 and 208,606.83 is: 287,875.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    378,372.69 : 522,150.87 = 208,606.83 : x
  2. Step 2: Convert to fraction form
    378,372.69/522,150.87 = 208,606.83/x
  3. Step 3: Cross multiply
    378,372.69x = 522,150.87 × 208,606.83
  4. Step 4: Simplify right side
    378,372.69x = 108,924,237,772.44
  5. Step 5: Solve for x
    x = 108,924,237,772.44/378,372.69
  6. Step 6: Final answer
    x = 287,875.53

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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.