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Finding the Fourth Proportional to 395,305.05, 545,525.37 and 214,020.93

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Solution

The fourth proportional to 395,305.05, 545,525.37 and 214,020.93 is: 295,351.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    395,305.05 : 545,525.37 = 214,020.93 : x
  2. Step 2: Convert to fraction form
    395,305.05/545,525.37 = 214,020.93/x
  3. Step 3: Cross multiply
    395,305.05x = 545,525.37 × 214,020.93
  4. Step 4: Simplify right side
    395,305.05x = 116,753,847,025.99
  5. Step 5: Solve for x
    x = 116,753,847,025.99/395,305.05
  6. Step 6: Final answer
    x = 295,351.27

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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.