Home / 395,100.45-545,263.25-223,047.54

Finding the Fourth Proportional to 395,100.45, 545,263.25 and 223,047.54

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Solution

The fourth proportional to 395,100.45, 545,263.25 and 223,047.54 is: 307,819.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    395,100.45 : 545,263.25 = 223,047.54 : x
  2. Step 2: Convert to fraction form
    395,100.45/545,263.25 = 223,047.54/x
  3. Step 3: Cross multiply
    395,100.45x = 545,263.25 × 223,047.54
  4. Step 4: Simplify right side
    395,100.45x = 121,619,625,449.67
  5. Step 5: Solve for x
    x = 121,619,625,449.67/395,100.45
  6. Step 6: Final answer
    x = 307,819.51

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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.