Home / 285,930.29-394,631.10-158,646.89

Finding the Fourth Proportional to 285,930.29, 394,631.10 and 158,646.89

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Solution

The fourth proportional to 285,930.29, 394,631.10 and 158,646.89 is: 218,958.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,930.29 : 394,631.10 = 158,646.89 : x
  2. Step 2: Convert to fraction form
    285,930.29/394,631.10 = 158,646.89/x
  3. Step 3: Cross multiply
    285,930.29x = 394,631.10 × 158,646.89
  4. Step 4: Simplify right side
    285,930.29x = 62,606,994,739.12
  5. Step 5: Solve for x
    x = 62,606,994,739.12/285,930.29
  6. Step 6: Final answer
    x = 218,958.95

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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.