Home / 285,479.64-393,933.24-158,131.44

Finding the Fourth Proportional to 285,479.64, 393,933.24 and 158,131.44

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Solution

The fourth proportional to 285,479.64, 393,933.24 and 158,131.44 is: 218,205.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,479.64 : 393,933.24 = 158,131.44 : x
  2. Step 2: Convert to fraction form
    285,479.64/393,933.24 = 158,131.44/x
  3. Step 3: Cross multiply
    285,479.64x = 393,933.24 × 158,131.44
  4. Step 4: Simplify right side
    285,479.64x = 62,293,230,505.07
  5. Step 5: Solve for x
    x = 62,293,230,505.07/285,479.64
  6. Step 6: Final answer
    x = 218,205.51

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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.