Home / 491,318.21-736,969.07-221,296.16

Finding the Fourth Proportional to 491,318.21, 736,969.07 and 221,296.16

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Solution

The fourth proportional to 491,318.21, 736,969.07 and 221,296.16 is: 331,940.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    491,318.21 : 736,969.07 = 221,296.16 : x
  2. Step 2: Convert to fraction form
    491,318.21/736,969.07 = 221,296.16/x
  3. Step 3: Cross multiply
    491,318.21x = 736,969.07 × 221,296.16
  4. Step 4: Simplify right side
    491,318.21x = 163,088,427,625.43
  5. Step 5: Solve for x
    x = 163,088,427,625.43/491,318.21
  6. Step 6: Final answer
    x = 331,940.53

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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.