Home / 395,337.12-545,604.30-225,596.76

Finding the Fourth Proportional to 395,337.12, 545,604.30 and 225,596.76

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Solution

The fourth proportional to 395,337.12, 545,604.30 and 225,596.76 is: 311,345.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    395,337.12 : 545,604.30 = 225,596.76 : x
  2. Step 2: Convert to fraction form
    395,337.12/545,604.30 = 225,596.76/x
  3. Step 3: Cross multiply
    395,337.12x = 545,604.30 × 225,596.76
  4. Step 4: Simplify right side
    395,337.12x = 123,086,562,322.07
  5. Step 5: Solve for x
    x = 123,086,562,322.07/395,337.12
  6. Step 6: Final answer
    x = 311,345.83

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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.