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Finding the Fourth Proportional to 285,974.88, 394,656.48 and 158,655.84

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Solution

The fourth proportional to 285,974.88, 394,656.48 and 158,655.84 is: 218,951.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,974.88 : 394,656.48 = 158,655.84 : x
  2. Step 2: Convert to fraction form
    285,974.88/394,656.48 = 158,655.84/x
  3. Step 3: Cross multiply
    285,974.88x = 394,656.48 × 158,655.84
  4. Step 4: Simplify right side
    285,974.88x = 62,614,555,345.84
  5. Step 5: Solve for x
    x = 62,614,555,345.84/285,974.88
  6. Step 6: Final answer
    x = 218,951.24

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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.