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Finding the Fourth Proportional to 245,568.54, 338,854.26 and 154,890.27

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Solution

The fourth proportional to 245,568.54, 338,854.26 and 154,890.27 is: 213,729.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,568.54 : 338,854.26 = 154,890.27 : x
  2. Step 2: Convert to fraction form
    245,568.54/338,854.26 = 154,890.27/x
  3. Step 3: Cross multiply
    245,568.54x = 338,854.26 × 154,890.27
  4. Step 4: Simplify right side
    245,568.54x = 52,485,227,822.05
  5. Step 5: Solve for x
    x = 52,485,227,822.05/245,568.54
  6. Step 6: Final answer
    x = 213,729.45

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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.