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Finding the Fourth Proportional to 303,800.52, 455,304.42 and 219,843.48

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Solution

The fourth proportional to 303,800.52, 455,304.42 and 219,843.48 is: 329,478.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,800.52 : 455,304.42 = 219,843.48 : x
  2. Step 2: Convert to fraction form
    303,800.52/455,304.42 = 219,843.48/x
  3. Step 3: Cross multiply
    303,800.52x = 455,304.42 × 219,843.48
  4. Step 4: Simplify right side
    303,800.52x = 100,095,708,152.18
  5. Step 5: Solve for x
    x = 100,095,708,152.18/303,800.52
  6. Step 6: Final answer
    x = 329,478.40

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.