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Finding the Fourth Proportional to 395,366.80, 545,704.60 and 225,699.34

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Solution

The fourth proportional to 395,366.80, 545,704.60 and 225,699.34 is: 311,521.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    395,366.80 : 545,704.60 = 225,699.34 : x
  2. Step 2: Convert to fraction form
    395,366.80/545,704.60 = 225,699.34/x
  3. Step 3: Cross multiply
    395,366.80x = 545,704.60 × 225,699.34
  4. Step 4: Simplify right side
    395,366.80x = 123,165,165,326.44
  5. Step 5: Solve for x
    x = 123,165,165,326.44/395,366.80
  6. Step 6: Final answer
    x = 311,521.27

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1.5x scale

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.