Home / 245,379.43-338,623.23-137,949.67

Finding the Fourth Proportional to 245,379.43, 338,623.23 and 137,949.67

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Solution

The fourth proportional to 245,379.43, 338,623.23 and 137,949.67 is: 190,370.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,379.43 : 338,623.23 = 137,949.67 : x
  2. Step 2: Convert to fraction form
    245,379.43/338,623.23 = 137,949.67/x
  3. Step 3: Cross multiply
    245,379.43x = 338,623.23 × 137,949.67
  4. Step 4: Simplify right side
    245,379.43x = 46,712,962,832.83
  5. Step 5: Solve for x
    x = 46,712,962,832.83/245,379.43
  6. Step 6: Final answer
    x = 190,370.33

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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.