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Finding the Fourth Proportional to 299,308.70, 413,054.75 and 163,351.38

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Solution

The fourth proportional to 299,308.70, 413,054.75 and 163,351.38 is: 225,429.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    299,308.70 : 413,054.75 = 163,351.38 : x
  2. Step 2: Convert to fraction form
    299,308.70/413,054.75 = 163,351.38/x
  3. Step 3: Cross multiply
    299,308.70x = 413,054.75 × 163,351.38
  4. Step 4: Simplify right side
    299,308.70x = 67,473,065,385.39
  5. Step 5: Solve for x
    x = 67,473,065,385.39/299,308.70
  6. Step 6: Final answer
    x = 225,429.68

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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.