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Finding the Fourth Proportional to 230,234.94, 345,399.12 and 72,426.69

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Solution

The fourth proportional to 230,234.94, 345,399.12 and 72,426.69 is: 108,654.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    230,234.94 : 345,399.12 = 72,426.69 : x
  2. Step 2: Convert to fraction form
    230,234.94/345,399.12 = 72,426.69/x
  3. Step 3: Cross multiply
    230,234.94x = 345,399.12 × 72,426.69
  4. Step 4: Simplify right side
    230,234.94x = 25,016,114,990.51
  5. Step 5: Solve for x
    x = 25,016,114,990.51/230,234.94
  6. Step 6: Final answer
    x = 108,654.73

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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.