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Finding the Fourth Proportional to 328,674.10, 492,723.15 and 223,150.90

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Solution

The fourth proportional to 328,674.10, 492,723.15 and 223,150.90 is: 334,530.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,674.10 : 492,723.15 = 223,150.90 : x
  2. Step 2: Convert to fraction form
    328,674.10/492,723.15 = 223,150.90/x
  3. Step 3: Cross multiply
    328,674.10x = 492,723.15 × 223,150.90
  4. Step 4: Simplify right side
    328,674.10x = 109,951,614,373.34
  5. Step 5: Solve for x
    x = 109,951,614,373.34/328,674.10
  6. Step 6: Final answer
    x = 334,530.81

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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.