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Finding the Fourth Proportional to 285,499.44, 394,002.13 and 158,175.04

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Solution

The fourth proportional to 285,499.44, 394,002.13 and 158,175.04 is: 218,288.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,499.44 : 394,002.13 = 158,175.04 : x
  2. Step 2: Convert to fraction form
    285,499.44/394,002.13 = 158,175.04/x
  3. Step 3: Cross multiply
    285,499.44x = 394,002.13 × 158,175.04
  4. Step 4: Simplify right side
    285,499.44x = 62,321,302,672.84
  5. Step 5: Solve for x
    x = 62,321,302,672.84/285,499.44
  6. Step 6: Final answer
    x = 218,288.70

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1.5x scale

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.