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Finding the Fourth Proportional to 315,015.75, 472,523.64 and 93,399.75

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Solution

The fourth proportional to 315,015.75, 472,523.64 and 93,399.75 is: 140,099.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,015.75 : 472,523.64 = 93,399.75 : x
  2. Step 2: Convert to fraction form
    315,015.75/472,523.64 = 93,399.75/x
  3. Step 3: Cross multiply
    315,015.75x = 472,523.64 × 93,399.75
  4. Step 4: Simplify right side
    315,015.75x = 44,133,589,845.09
  5. Step 5: Solve for x
    x = 44,133,589,845.09/315,015.75
  6. Step 6: Final answer
    x = 140,099.63

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1.5x scale

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.