Home / 327,776.63-491,692.28-91,121.36

Finding the Fourth Proportional to 327,776.63, 491,692.28 and 91,121.36

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Solution

The fourth proportional to 327,776.63, 491,692.28 and 91,121.36 is: 136,689.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    327,776.63 : 491,692.28 = 91,121.36 : x
  2. Step 2: Convert to fraction form
    327,776.63/491,692.28 = 91,121.36/x
  3. Step 3: Cross multiply
    327,776.63x = 491,692.28 × 91,121.36
  4. Step 4: Simplify right side
    327,776.63x = 44,803,666,341.03
  5. Step 5: Solve for x
    x = 44,803,666,341.03/327,776.63
  6. Step 6: Final answer
    x = 136,689.63

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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.