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Finding the Fourth Proportional to 343,979.88, 474,852.42 and 229,449.12

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Solution

The fourth proportional to 343,979.88, 474,852.42 and 229,449.12 is: 316,746.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    343,979.88 : 474,852.42 = 229,449.12 : x
  2. Step 2: Convert to fraction form
    343,979.88/474,852.42 = 229,449.12/x
  3. Step 3: Cross multiply
    343,979.88x = 474,852.42 × 229,449.12
  4. Step 4: Simplify right side
    343,979.88x = 108,954,469,898.87
  5. Step 5: Solve for x
    x = 108,954,469,898.87/343,979.88
  6. Step 6: Final answer
    x = 316,746.64

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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.