Home / 491,321.21-736,973.57-221,299.16

Finding the Fourth Proportional to 491,321.21, 736,973.57 and 221,299.16

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Solution

The fourth proportional to 491,321.21, 736,973.57 and 221,299.16 is: 331,945.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    491,321.21 : 736,973.57 = 221,299.16 : x
  2. Step 2: Convert to fraction form
    491,321.21/736,973.57 = 221,299.16/x
  3. Step 3: Cross multiply
    491,321.21x = 736,973.57 × 221,299.16
  4. Step 4: Simplify right side
    491,321.21x = 163,091,631,983.20
  5. Step 5: Solve for x
    x = 163,091,631,983.20/491,321.21
  6. Step 6: Final answer
    x = 331,945.03

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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.