Home / 387,067.88-534,135.39-214,996.92

Finding the Fourth Proportional to 387,067.88, 534,135.39 and 214,996.92

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Solution

The fourth proportional to 387,067.88, 534,135.39 and 214,996.92 is: 296,685.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    387,067.88 : 534,135.39 = 214,996.92 : x
  2. Step 2: Convert to fraction form
    387,067.88/534,135.39 = 214,996.92/x
  3. Step 3: Cross multiply
    387,067.88x = 534,135.39 × 214,996.92
  4. Step 4: Simplify right side
    387,067.88x = 114,837,463,713.00
  5. Step 5: Solve for x
    x = 114,837,463,713.00/387,067.88
  6. Step 6: Final answer
    x = 296,685.60

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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.