Home / 285,422.52-393,883.08-158,106.36

Finding the Fourth Proportional to 285,422.52, 393,883.08 and 158,106.36

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Solution

The fourth proportional to 285,422.52, 393,883.08 and 158,106.36 is: 218,186.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,422.52 : 393,883.08 = 158,106.36 : x
  2. Step 2: Convert to fraction form
    285,422.52/393,883.08 = 158,106.36/x
  3. Step 3: Cross multiply
    285,422.52x = 393,883.08 × 158,106.36
  4. Step 4: Simplify right side
    285,422.52x = 62,275,420,044.39
  5. Step 5: Solve for x
    x = 62,275,420,044.39/285,422.52
  6. Step 6: Final answer
    x = 218,186.78

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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.