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Finding the Fourth Proportional to 360,736.50, 540,686.48 and 135,953

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Solution

The fourth proportional to 360,736.50, 540,686.48 and 135,953 is: 203,771.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    360,736.50 : 540,686.48 = 135,953 : x
  2. Step 2: Convert to fraction form
    360,736.50/540,686.48 = 135,953/x
  3. Step 3: Cross multiply
    360,736.50x = 540,686.48 × 135,953
  4. Step 4: Simplify right side
    360,736.50x = 73,507,949,015.44
  5. Step 5: Solve for x
    x = 73,507,949,015.44/360,736.50
  6. Step 6: Final answer
    x = 203,771.86

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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.