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Finding the Fourth Proportional to 644,509.35, 966,813.23 and 195,267.43

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Solution

The fourth proportional to 644,509.35, 966,813.23 and 195,267.43 is: 292,916.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    644,509.35 : 966,813.23 = 195,267.43 : x
  2. Step 2: Convert to fraction form
    644,509.35/966,813.23 = 195,267.43/x
  3. Step 3: Cross multiply
    644,509.35x = 966,813.23 × 195,267.43
  4. Step 4: Simplify right side
    644,509.35x = 188,787,128,901.70
  5. Step 5: Solve for x
    x = 188,787,128,901.70/644,509.35
  6. Step 6: Final answer
    x = 292,916.04

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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.