Home / 387,836.49-534,773.09-273,078.47

Finding the Fourth Proportional to 387,836.49, 534,773.09 and 273,078.47

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Solution

The fourth proportional to 387,836.49, 534,773.09 and 273,078.47 is: 376,537.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    387,836.49 : 534,773.09 = 273,078.47 : x
  2. Step 2: Convert to fraction form
    387,836.49/534,773.09 = 273,078.47/x
  3. Step 3: Cross multiply
    387,836.49x = 534,773.09 × 273,078.47
  4. Step 4: Simplify right side
    387,836.49x = 146,035,013,175.12
  5. Step 5: Solve for x
    x = 146,035,013,175.12/387,836.49
  6. Step 6: Final answer
    x = 376,537.58

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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.