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Finding the Fourth Proportional to 354,150.87, 531,382.74 and 185,630.86

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Solution

The fourth proportional to 354,150.87, 531,382.74 and 185,630.86 is: 278,528.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,150.87 : 531,382.74 = 185,630.86 : x
  2. Step 2: Convert to fraction form
    354,150.87/531,382.74 = 185,630.86/x
  3. Step 3: Cross multiply
    354,150.87x = 531,382.74 × 185,630.86
  4. Step 4: Simplify right side
    354,150.87x = 98,641,035,015.36
  5. Step 5: Solve for x
    x = 98,641,035,015.36/354,150.87
  6. Step 6: Final answer
    x = 278,528.29

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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.