Home / 245,732.41-368,651.20-139,166.73

Finding the Fourth Proportional to 245,732.41, 368,651.20 and 139,166.73

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Solution

The fourth proportional to 245,732.41, 368,651.20 and 139,166.73 is: 208,779.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,732.41 : 368,651.20 = 139,166.73 : x
  2. Step 2: Convert to fraction form
    245,732.41/368,651.20 = 139,166.73/x
  3. Step 3: Cross multiply
    245,732.41x = 368,651.20 × 139,166.73
  4. Step 4: Simplify right side
    245,732.41x = 51,303,981,318.74
  5. Step 5: Solve for x
    x = 51,303,981,318.74/245,732.41
  6. Step 6: Final answer
    x = 208,779.88

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.