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Finding the Fourth Proportional to 395,338.62, 545,606.37 and 225,598.26

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Solution

The fourth proportional to 395,338.62, 545,606.37 and 225,598.26 is: 311,347.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    395,338.62 : 545,606.37 = 225,598.26 : x
  2. Step 2: Convert to fraction form
    395,338.62/545,606.37 = 225,598.26/x
  3. Step 3: Cross multiply
    395,338.62x = 545,606.37 × 225,598.26
  4. Step 4: Simplify right side
    395,338.62x = 123,087,847,716.92
  5. Step 5: Solve for x
    x = 123,087,847,716.92/395,338.62
  6. Step 6: Final answer
    x = 311,347.90

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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.