Home / 285,518.36-394,031.28-163,046.90

Finding the Fourth Proportional to 285,518.36, 394,031.28 and 163,046.90

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Solution

The fourth proportional to 285,518.36, 394,031.28 and 163,046.90 is: 225,013.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,518.36 : 394,031.28 = 163,046.90 : x
  2. Step 2: Convert to fraction form
    285,518.36/394,031.28 = 163,046.90/x
  3. Step 3: Cross multiply
    285,518.36x = 394,031.28 × 163,046.90
  4. Step 4: Simplify right side
    285,518.36x = 64,245,578,707.03
  5. Step 5: Solve for x
    x = 64,245,578,707.03/285,518.36
  6. Step 6: Final answer
    x = 225,013.83

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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.