Home / 327,867.40-491,801.10-228,140.20

Finding the Fourth Proportional to 327,867.40, 491,801.10 and 228,140.20

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Solution

The fourth proportional to 327,867.40, 491,801.10 and 228,140.20 is: 342,210.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    327,867.40 : 491,801.10 = 228,140.20 : x
  2. Step 2: Convert to fraction form
    327,867.40/491,801.10 = 228,140.20/x
  3. Step 3: Cross multiply
    327,867.40x = 491,801.10 × 228,140.20
  4. Step 4: Simplify right side
    327,867.40x = 112,199,601,314.22
  5. Step 5: Solve for x
    x = 112,199,601,314.22/327,867.40
  6. Step 6: Final answer
    x = 342,210.30

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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.