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Finding the Fourth Proportional to 395,313.79, 545,532.26 and 214,025.69

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Solution

The fourth proportional to 395,313.79, 545,532.26 and 214,025.69 is: 295,355.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    395,313.79 : 545,532.26 = 214,025.69 : x
  2. Step 2: Convert to fraction form
    395,313.79/545,532.26 = 214,025.69/x
  3. Step 3: Cross multiply
    395,313.79x = 545,532.26 × 214,025.69
  4. Step 4: Simplify right side
    395,313.79x = 116,757,918,657.46
  5. Step 5: Solve for x
    x = 116,757,918,657.46/395,313.79
  6. Step 6: Final answer
    x = 295,355.04

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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.