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Finding the Fourth Proportional to 363,873.88, 545,563.74 and 127,087

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Solution

The fourth proportional to 363,873.88, 545,563.74 and 127,087 is: 190,544.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    363,873.88 : 545,563.74 = 127,087 : x
  2. Step 2: Convert to fraction form
    363,873.88/545,563.74 = 127,087/x
  3. Step 3: Cross multiply
    363,873.88x = 545,563.74 × 127,087
  4. Step 4: Simplify right side
    363,873.88x = 69,334,059,025.38
  5. Step 5: Solve for x
    x = 69,334,059,025.38/363,873.88
  6. Step 6: Final answer
    x = 190,544.20

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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.