Home / 245,340.90-338,572.31-136,446.77

Finding the Fourth Proportional to 245,340.90, 338,572.31 and 136,446.77

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Solution

The fourth proportional to 245,340.90, 338,572.31 and 136,446.77 is: 188,297.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,340.90 : 338,572.31 = 136,446.77 : x
  2. Step 2: Convert to fraction form
    245,340.90/338,572.31 = 136,446.77/x
  3. Step 3: Cross multiply
    245,340.90x = 338,572.31 × 136,446.77
  4. Step 4: Simplify right side
    245,340.90x = 46,197,098,110.94
  5. Step 5: Solve for x
    x = 46,197,098,110.94/245,340.90
  6. Step 6: Final answer
    x = 188,297.58

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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.