Home / 387,754.56-581,942.88-200,819.52

Finding the Fourth Proportional to 387,754.56, 581,942.88 and 200,819.52

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Solution

The fourth proportional to 387,754.56, 581,942.88 and 200,819.52 is: 301,390.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    387,754.56 : 581,942.88 = 200,819.52 : x
  2. Step 2: Convert to fraction form
    387,754.56/581,942.88 = 200,819.52/x
  3. Step 3: Cross multiply
    387,754.56x = 581,942.88 × 200,819.52
  4. Step 4: Simplify right side
    387,754.56x = 116,865,489,829.02
  5. Step 5: Solve for x
    x = 116,865,489,829.02/387,754.56
  6. Step 6: Final answer
    x = 301,390.37

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.