Home / 217,428.20-325,980.30-112,322.60

Finding the Fourth Proportional to 217,428.20, 325,980.30 and 112,322.60

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Solution

The fourth proportional to 217,428.20, 325,980.30 and 112,322.60 is: 168,400.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,428.20 : 325,980.30 = 112,322.60 : x
  2. Step 2: Convert to fraction form
    217,428.20/325,980.30 = 112,322.60/x
  3. Step 3: Cross multiply
    217,428.20x = 325,980.30 × 112,322.60
  4. Step 4: Simplify right side
    217,428.20x = 36,614,954,844.78
  5. Step 5: Solve for x
    x = 36,614,954,844.78/217,428.20
  6. Step 6: Final answer
    x = 168,400.21

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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.