Home / 285,930.48-394,565.28-158,601.68

Finding the Fourth Proportional to 285,930.48, 394,565.28 and 158,601.68

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Solution

The fourth proportional to 285,930.48, 394,565.28 and 158,601.68 is: 218,859.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,930.48 : 394,565.28 = 158,601.68 : x
  2. Step 2: Convert to fraction form
    285,930.48/394,565.28 = 158,601.68/x
  3. Step 3: Cross multiply
    285,930.48x = 394,565.28 × 158,601.68
  4. Step 4: Simplify right side
    285,930.48x = 62,578,716,277.67
  5. Step 5: Solve for x
    x = 62,578,716,277.67/285,930.48
  6. Step 6: Final answer
    x = 218,859.90

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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.