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Finding the Fourth Proportional to 644,870.95, 967,305.29 and 171,556.31

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Solution

The fourth proportional to 644,870.95, 967,305.29 and 171,556.31 is: 257,334.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    644,870.95 : 967,305.29 = 171,556.31 : x
  2. Step 2: Convert to fraction form
    644,870.95/967,305.29 = 171,556.31/x
  3. Step 3: Cross multiply
    644,870.95x = 967,305.29 × 171,556.31
  4. Step 4: Simplify right side
    644,870.95x = 165,947,325,338.10
  5. Step 5: Solve for x
    x = 165,947,325,338.10/644,870.95
  6. Step 6: Final answer
    x = 257,334.16

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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.