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Finding the Fourth Proportional to 384,251.27, 530,379.36 and 223,178.72

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Solution

The fourth proportional to 384,251.27, 530,379.36 and 223,178.72 is: 308,052.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    384,251.27 : 530,379.36 = 223,178.72 : x
  2. Step 2: Convert to fraction form
    384,251.27/530,379.36 = 223,178.72/x
  3. Step 3: Cross multiply
    384,251.27x = 530,379.36 × 223,178.72
  4. Step 4: Simplify right side
    384,251.27x = 118,369,384,027.32
  5. Step 5: Solve for x
    x = 118,369,384,027.32/384,251.27
  6. Step 6: Final answer
    x = 308,052.03

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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.