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Finding the Fourth Proportional to 304,908.93, 457,280.78 and 127,378.80

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Solution

The fourth proportional to 304,908.93, 457,280.78 and 127,378.80 is: 191,033.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    304,908.93 : 457,280.78 = 127,378.80 : x
  2. Step 2: Convert to fraction form
    304,908.93/457,280.78 = 127,378.80/x
  3. Step 3: Cross multiply
    304,908.93x = 457,280.78 × 127,378.80
  4. Step 4: Simplify right side
    304,908.93x = 58,247,876,382.57
  5. Step 5: Solve for x
    x = 58,247,876,382.57/304,908.93
  6. Step 6: Final answer
    x = 191,033.68

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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.