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Finding the Fourth Proportional to 245,498.39, 338,673.39 and 159,451.28

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Solution

The fourth proportional to 245,498.39, 338,673.39 and 159,451.28 is: 219,968.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,498.39 : 338,673.39 = 159,451.28 : x
  2. Step 2: Convert to fraction form
    245,498.39/338,673.39 = 159,451.28/x
  3. Step 3: Cross multiply
    245,498.39x = 338,673.39 × 159,451.28
  4. Step 4: Simplify right side
    245,498.39x = 54,001,905,537.44
  5. Step 5: Solve for x
    x = 54,001,905,537.44/245,498.39
  6. Step 6: Final answer
    x = 219,968.47

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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.