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Finding the Fourth Proportional to 266,628.20, 399,942.30 and 230,858.60

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Solution

The fourth proportional to 266,628.20, 399,942.30 and 230,858.60 is: 346,287.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,628.20 : 399,942.30 = 230,858.60 : x
  2. Step 2: Convert to fraction form
    266,628.20/399,942.30 = 230,858.60/x
  3. Step 3: Cross multiply
    266,628.20x = 399,942.30 × 230,858.60
  4. Step 4: Simplify right side
    266,628.20x = 92,330,119,458.78
  5. Step 5: Solve for x
    x = 92,330,119,458.78/266,628.20
  6. Step 6: Final answer
    x = 346,287.90

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.