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Finding the Fourth Proportional to 245,154, 338,087.88 and 159,023.28

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Solution

The fourth proportional to 245,154, 338,087.88 and 159,023.28 is: 219,306.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,154 : 338,087.88 = 159,023.28 : x
  2. Step 2: Convert to fraction form
    245,154/338,087.88 = 159,023.28/x
  3. Step 3: Cross multiply
    245,154x = 338,087.88 × 159,023.28
  4. Step 4: Simplify right side
    245,154x = 53,763,843,605.85
  5. Step 5: Solve for x
    x = 53,763,843,605.85/245,154
  6. Step 6: Final answer
    x = 219,306.41

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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.