Home / 217,979.60-326,980.20-113,003.60

Finding the Fourth Proportional to 217,979.60, 326,980.20 and 113,003.60

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Solution

The fourth proportional to 217,979.60, 326,980.20 and 113,003.60 is: 169,511.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,979.60 : 326,980.20 = 113,003.60 : x
  2. Step 2: Convert to fraction form
    217,979.60/326,980.20 = 113,003.60/x
  3. Step 3: Cross multiply
    217,979.60x = 326,980.20 × 113,003.60
  4. Step 4: Simplify right side
    217,979.60x = 36,949,939,728.72
  5. Step 5: Solve for x
    x = 36,949,939,728.72/217,979.60
  6. Step 6: Final answer
    x = 169,511.00

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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.