Home / 378,150.96-521,847.27-208,385.04

Finding the Fourth Proportional to 378,150.96, 521,847.27 and 208,385.04

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Solution

The fourth proportional to 378,150.96, 521,847.27 and 208,385.04 is: 287,570.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    378,150.96 : 521,847.27 = 208,385.04 : x
  2. Step 2: Convert to fraction form
    378,150.96/521,847.27 = 208,385.04/x
  3. Step 3: Cross multiply
    378,150.96x = 521,847.27 × 208,385.04
  4. Step 4: Simplify right side
    378,150.96x = 108,745,164,232.84
  5. Step 5: Solve for x
    x = 108,745,164,232.84/378,150.96
  6. Step 6: Final answer
    x = 287,570.77

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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.