Home / 285,434.52-393,899.62-158,118.36

Finding the Fourth Proportional to 285,434.52, 393,899.62 and 158,118.36

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Solution

The fourth proportional to 285,434.52, 393,899.62 and 158,118.36 is: 218,203.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,434.52 : 393,899.62 = 158,118.36 : x
  2. Step 2: Convert to fraction form
    285,434.52/393,899.62 = 158,118.36/x
  3. Step 3: Cross multiply
    285,434.52x = 393,899.62 × 158,118.36
  4. Step 4: Simplify right side
    285,434.52x = 62,282,761,919.02
  5. Step 5: Solve for x
    x = 62,282,761,919.02/285,434.52
  6. Step 6: Final answer
    x = 218,203.33

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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.