Home / 378,051.14-521,710.26-208,285.27

Finding the Fourth Proportional to 378,051.14, 521,710.26 and 208,285.27

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Solution

The fourth proportional to 378,051.14, 521,710.26 and 208,285.27 is: 287,433.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    378,051.14 : 521,710.26 = 208,285.27 : x
  2. Step 2: Convert to fraction form
    378,051.14/521,710.26 = 208,285.27/x
  3. Step 3: Cross multiply
    378,051.14x = 521,710.26 × 208,285.27
  4. Step 4: Simplify right side
    378,051.14x = 108,664,562,365.87
  5. Step 5: Solve for x
    x = 108,664,562,365.87/378,051.14
  6. Step 6: Final answer
    x = 287,433.50

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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.