Home / 395,110.25-545,252.10-213,822.18

Finding the Fourth Proportional to 395,110.25, 545,252.10 and 213,822.18

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Solution

The fourth proportional to 395,110.25, 545,252.10 and 213,822.18 is: 295,074.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    395,110.25 : 545,252.10 = 213,822.18 : x
  2. Step 2: Convert to fraction form
    395,110.25/545,252.10 = 213,822.18/x
  3. Step 3: Cross multiply
    395,110.25x = 545,252.10 × 213,822.18
  4. Step 4: Simplify right side
    395,110.25x = 116,586,989,945.32
  5. Step 5: Solve for x
    x = 116,586,989,945.32/395,110.25
  6. Step 6: Final answer
    x = 295,074.58

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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.