Home / 395,508.33-545,835.03-223,457.88

Finding the Fourth Proportional to 395,508.33, 545,835.03 and 223,457.88

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Solution

The fourth proportional to 395,508.33, 545,835.03 and 223,457.88 is: 308,390.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    395,508.33 : 545,835.03 = 223,457.88 : x
  2. Step 2: Convert to fraction form
    395,508.33/545,835.03 = 223,457.88/x
  3. Step 3: Cross multiply
    395,508.33x = 545,835.03 × 223,457.88
  4. Step 4: Simplify right side
    395,508.33x = 121,971,138,633.54
  5. Step 5: Solve for x
    x = 121,971,138,633.54/395,508.33
  6. Step 6: Final answer
    x = 308,390.82

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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.