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Finding the Fourth Proportional to 228,951.62, 315,954.16 and 126,986.60

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Solution

The fourth proportional to 228,951.62, 315,954.16 and 126,986.60 is: 175,242.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,951.62 : 315,954.16 = 126,986.60 : x
  2. Step 2: Convert to fraction form
    228,951.62/315,954.16 = 126,986.60/x
  3. Step 3: Cross multiply
    228,951.62x = 315,954.16 × 126,986.60
  4. Step 4: Simplify right side
    228,951.62x = 40,121,944,534.26
  5. Step 5: Solve for x
    x = 40,121,944,534.26/228,951.62
  6. Step 6: Final answer
    x = 175,242.02

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.