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Finding the Fourth Proportional to 299,479.70, 413,318.28 and 170,449.60

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Solution

The fourth proportional to 299,479.70, 413,318.28 and 170,449.60 is: 235,241.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    299,479.70 : 413,318.28 = 170,449.60 : x
  2. Step 2: Convert to fraction form
    299,479.70/413,318.28 = 170,449.60/x
  3. Step 3: Cross multiply
    299,479.70x = 413,318.28 × 170,449.60
  4. Step 4: Simplify right side
    299,479.70x = 70,449,935,498.69
  5. Step 5: Solve for x
    x = 70,449,935,498.69/299,479.70
  6. Step 6: Final answer
    x = 235,241.10

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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.