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Finding the Fourth Proportional to 380,273.60, 570,440.10 and 169,932.80

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Solution

The fourth proportional to 380,273.60, 570,440.10 and 169,932.80 is: 254,912.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    380,273.60 : 570,440.10 = 169,932.80 : x
  2. Step 2: Convert to fraction form
    380,273.60/570,440.10 = 169,932.80/x
  3. Step 3: Cross multiply
    380,273.60x = 570,440.10 × 169,932.80
  4. Step 4: Simplify right side
    380,273.60x = 96,936,483,425.28
  5. Step 5: Solve for x
    x = 96,936,483,425.28/380,273.60
  6. Step 6: Final answer
    x = 254,912.47

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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.