Home / 285,394.40-393,822.60-158,067.26

Finding the Fourth Proportional to 285,394.40, 393,822.60 and 158,067.26

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Solution

The fourth proportional to 285,394.40, 393,822.60 and 158,067.26 is: 218,120.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,394.40 : 393,822.60 = 158,067.26 : x
  2. Step 2: Convert to fraction form
    285,394.40/393,822.60 = 158,067.26/x
  3. Step 3: Cross multiply
    285,394.40x = 393,822.60 × 158,067.26
  4. Step 4: Simplify right side
    285,394.40x = 62,250,459,897.46
  5. Step 5: Solve for x
    x = 62,250,459,897.46/285,394.40
  6. Step 6: Final answer
    x = 218,120.82

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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.