Home / 217,480.20-326,109.60-84,398.64

Finding the Fourth Proportional to 217,480.20, 326,109.60 and 84,398.64

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Solution

The fourth proportional to 217,480.20, 326,109.60 and 84,398.64 is: 126,555.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,480.20 : 326,109.60 = 84,398.64 : x
  2. Step 2: Convert to fraction form
    217,480.20/326,109.60 = 84,398.64/x
  3. Step 3: Cross multiply
    217,480.20x = 326,109.60 × 84,398.64
  4. Step 4: Simplify right side
    217,480.20x = 27,523,206,730.94
  5. Step 5: Solve for x
    x = 27,523,206,730.94/217,480.20
  6. Step 6: Final answer
    x = 126,555.00

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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.