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Finding the Fourth Proportional to 303,434.30, 455,333.70 and 125,922.80

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Solution

The fourth proportional to 303,434.30, 455,333.70 and 125,922.80 is: 188,959.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,434.30 : 455,333.70 = 125,922.80 : x
  2. Step 2: Convert to fraction form
    303,434.30/455,333.70 = 125,922.80/x
  3. Step 3: Cross multiply
    303,434.30x = 455,333.70 × 125,922.80
  4. Step 4: Simplify right side
    303,434.30x = 57,336,894,438.36
  5. Step 5: Solve for x
    x = 57,336,894,438.36/303,434.30
  6. Step 6: Final answer
    x = 188,959.83

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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.