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Finding the Fourth Proportional to 245,366.42, 338,579.83 and 136,453.11

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Solution

The fourth proportional to 245,366.42, 338,579.83 and 136,453.11 is: 188,290.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,366.42 : 338,579.83 = 136,453.11 : x
  2. Step 2: Convert to fraction form
    245,366.42/338,579.83 = 136,453.11/x
  3. Step 3: Cross multiply
    245,366.42x = 338,579.83 × 136,453.11
  4. Step 4: Simplify right side
    245,366.42x = 46,200,269,687.66
  5. Step 5: Solve for x
    x = 46,200,269,687.66/245,366.42
  6. Step 6: Final answer
    x = 188,290.93

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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.