Home / 395,057.40-545,186.26-223,009.72

Finding the Fourth Proportional to 395,057.40, 545,186.26 and 223,009.72

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Solution

The fourth proportional to 395,057.40, 545,186.26 and 223,009.72 is: 307,757.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    395,057.40 : 545,186.26 = 223,009.72 : x
  2. Step 2: Convert to fraction form
    395,057.40/545,186.26 = 223,009.72/x
  3. Step 3: Cross multiply
    395,057.40x = 545,186.26 × 223,009.72
  4. Step 4: Simplify right side
    395,057.40x = 121,581,835,190.45
  5. Step 5: Solve for x
    x = 121,581,835,190.45/395,057.40
  6. Step 6: Final answer
    x = 307,757.39

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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.