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Finding the Fourth Proportional to 327,644.19, 491,466.47 and 90,986.90

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Solution

The fourth proportional to 327,644.19, 491,466.47 and 90,986.90 is: 136,480.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    327,644.19 : 491,466.47 = 90,986.90 : x
  2. Step 2: Convert to fraction form
    327,644.19/491,466.47 = 90,986.90/x
  3. Step 3: Cross multiply
    327,644.19x = 491,466.47 × 90,986.90
  4. Step 4: Simplify right side
    327,644.19x = 44,717,007,646.98
  5. Step 5: Solve for x
    x = 44,717,007,646.98/327,644.19
  6. Step 6: Final answer
    x = 136,480.39

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1.5x scale

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.