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Finding the Fourth Proportional to 383,512.59, 575,143.68 and 127,276.33

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Solution

The fourth proportional to 383,512.59, 575,143.68 and 127,276.33 is: 190,872.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    383,512.59 : 575,143.68 = 127,276.33 : x
  2. Step 2: Convert to fraction form
    383,512.59/575,143.68 = 127,276.33/x
  3. Step 3: Cross multiply
    383,512.59x = 575,143.68 × 127,276.33
  4. Step 4: Simplify right side
    383,512.59x = 73,202,176,813.09
  5. Step 5: Solve for x
    x = 73,202,176,813.09/383,512.59
  6. Step 6: Final answer
    x = 190,872.94

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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.