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Finding the Fourth Proportional to 647,252.80, 971,311.08 and 226,528.72

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Solution

The fourth proportional to 647,252.80, 971,311.08 and 226,528.72 is: 339,944.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    647,252.80 : 971,311.08 = 226,528.72 : x
  2. Step 2: Convert to fraction form
    647,252.80/971,311.08 = 226,528.72/x
  3. Step 3: Cross multiply
    647,252.80x = 971,311.08 × 226,528.72
  4. Step 4: Simplify right side
    647,252.80x = 220,029,855,674.22
  5. Step 5: Solve for x
    x = 220,029,855,674.22/647,252.80
  6. Step 6: Final answer
    x = 339,944.23

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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.