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Finding the Fourth Proportional to 360,458.45, 540,724.66 and 136,007.76

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Solution

The fourth proportional to 360,458.45, 540,724.66 and 136,007.76 is: 204,025.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    360,458.45 : 540,724.66 = 136,007.76 : x
  2. Step 2: Convert to fraction form
    360,458.45/540,724.66 = 136,007.76/x
  3. Step 3: Cross multiply
    360,458.45x = 540,724.66 × 136,007.76
  4. Step 4: Simplify right side
    360,458.45x = 73,542,749,194.53
  5. Step 5: Solve for x
    x = 73,542,749,194.53/360,458.45
  6. Step 6: Final answer
    x = 204,025.59

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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.