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Finding the Fourth Proportional to 227,573.76, 313,905.60 and 138,149.76

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Solution

The fourth proportional to 227,573.76, 313,905.60 and 138,149.76 is: 190,557.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    227,573.76 : 313,905.60 = 138,149.76 : x
  2. Step 2: Convert to fraction form
    227,573.76/313,905.60 = 138,149.76/x
  3. Step 3: Cross multiply
    227,573.76x = 313,905.60 × 138,149.76
  4. Step 4: Simplify right side
    227,573.76x = 43,365,983,302.66
  5. Step 5: Solve for x
    x = 43,365,983,302.66/227,573.76
  6. Step 6: Final answer
    x = 190,557.92

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1.5x scale

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.