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Finding the Fourth Proportional to 380,147.94, 570,348.59 and 127,453.41

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Solution

The fourth proportional to 380,147.94, 570,348.59 and 127,453.41 is: 191,222.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    380,147.94 : 570,348.59 = 127,453.41 : x
  2. Step 2: Convert to fraction form
    380,147.94/570,348.59 = 127,453.41/x
  3. Step 3: Cross multiply
    380,147.94x = 570,348.59 × 127,453.41
  4. Step 4: Simplify right side
    380,147.94x = 72,692,872,046.92
  5. Step 5: Solve for x
    x = 72,692,872,046.92/380,147.94
  6. Step 6: Final answer
    x = 191,222.59

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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.