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Finding the Fourth Proportional to 395,406.92, 545,700.58 and 225,666.44

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Solution

The fourth proportional to 395,406.92, 545,700.58 and 225,666.44 is: 311,441.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    395,406.92 : 545,700.58 = 225,666.44 : x
  2. Step 2: Convert to fraction form
    395,406.92/545,700.58 = 225,666.44/x
  3. Step 3: Cross multiply
    395,406.92x = 545,700.58 × 225,666.44
  4. Step 4: Simplify right side
    395,406.92x = 123,146,307,194.54
  5. Step 5: Solve for x
    x = 123,146,307,194.54/395,406.92
  6. Step 6: Final answer
    x = 311,441.96

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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.