Home / 644,273.16-966,408.54-170,921.31

Finding the Fourth Proportional to 644,273.16, 966,408.54 and 170,921.31

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Solution

The fourth proportional to 644,273.16, 966,408.54 and 170,921.31 is: 256,381.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    644,273.16 : 966,408.54 = 170,921.31 : x
  2. Step 2: Convert to fraction form
    644,273.16/966,408.54 = 170,921.31/x
  3. Step 3: Cross multiply
    644,273.16x = 966,408.54 × 170,921.31
  4. Step 4: Simplify right side
    644,273.16x = 165,179,813,651.99
  5. Step 5: Solve for x
    x = 165,179,813,651.99/644,273.16
  6. Step 6: Final answer
    x = 256,381.65

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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.