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Finding the Fourth Proportional to 395,313.67, 545,532.08 and 214,025.57

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Solution

The fourth proportional to 395,313.67, 545,532.08 and 214,025.57 is: 295,354.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    395,313.67 : 545,532.08 = 214,025.57 : x
  2. Step 2: Convert to fraction form
    395,313.67/545,532.08 = 214,025.57/x
  3. Step 3: Cross multiply
    395,313.67x = 545,532.08 × 214,025.57
  4. Step 4: Simplify right side
    395,313.67x = 116,757,814,375.29
  5. Step 5: Solve for x
    x = 116,757,814,375.29/395,313.67
  6. Step 6: Final answer
    x = 295,354.86

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.