Home / 395,530.28-545,790.82-223,467.03

Finding the Fourth Proportional to 395,530.28, 545,790.82 and 223,467.03

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Solution

The fourth proportional to 395,530.28, 545,790.82 and 223,467.03 is: 308,361.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    395,530.28 : 545,790.82 = 223,467.03 : x
  2. Step 2: Convert to fraction form
    395,530.28/545,790.82 = 223,467.03/x
  3. Step 3: Cross multiply
    395,530.28x = 545,790.82 × 223,467.03
  4. Step 4: Simplify right side
    395,530.28x = 121,966,252,988.00
  5. Step 5: Solve for x
    x = 121,966,252,988.00/395,530.28
  6. Step 6: Final answer
    x = 308,361.36

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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.