Home / 356,286.12-491,438.30-229,122.60

Finding the Fourth Proportional to 356,286.12, 491,438.30 and 229,122.60

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Solution

The fourth proportional to 356,286.12, 491,438.30 and 229,122.60 is: 316,037.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,286.12 : 491,438.30 = 229,122.60 : x
  2. Step 2: Convert to fraction form
    356,286.12/491,438.30 = 229,122.60/x
  3. Step 3: Cross multiply
    356,286.12x = 491,438.30 × 229,122.60
  4. Step 4: Simplify right side
    356,286.12x = 112,599,621,035.58
  5. Step 5: Solve for x
    x = 112,599,621,035.58/356,286.12
  6. Step 6: Final answer
    x = 316,037.07

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.