Home / 387,001.58-534,067.42-214,930.65

Finding the Fourth Proportional to 387,001.58, 534,067.42 and 214,930.65

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Solution

The fourth proportional to 387,001.58, 534,067.42 and 214,930.65 is: 296,607.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    387,001.58 : 534,067.42 = 214,930.65 : x
  2. Step 2: Convert to fraction form
    387,001.58/534,067.42 = 214,930.65/x
  3. Step 3: Cross multiply
    387,001.58x = 534,067.42 × 214,930.65
  4. Step 4: Simplify right side
    387,001.58x = 114,787,457,724.42
  5. Step 5: Solve for x
    x = 114,787,457,724.42/387,001.58
  6. Step 6: Final answer
    x = 296,607.21

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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.