Home / 395,110-545,251.77-213,821.93

Finding the Fourth Proportional to 395,110, 545,251.77 and 213,821.93

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Solution

The fourth proportional to 395,110, 545,251.77 and 213,821.93 is: 295,074.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    395,110 : 545,251.77 = 213,821.93 : x
  2. Step 2: Convert to fraction form
    395,110/545,251.77 = 213,821.93/x
  3. Step 3: Cross multiply
    395,110x = 545,251.77 × 213,821.93
  4. Step 4: Simplify right side
    395,110x = 116,586,785,797.32
  5. Step 5: Solve for x
    x = 116,586,785,797.32/395,110
  6. Step 6: Final answer
    x = 295,074.25

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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.