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Finding the Fourth Proportional to 217,069.60, 325,604.40 and 133,088.80

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Solution

The fourth proportional to 217,069.60, 325,604.40 and 133,088.80 is: 199,633.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,069.60 : 325,604.40 = 133,088.80 : x
  2. Step 2: Convert to fraction form
    217,069.60/325,604.40 = 133,088.80/x
  3. Step 3: Cross multiply
    217,069.60x = 325,604.40 × 133,088.80
  4. Step 4: Simplify right side
    217,069.60x = 43,334,298,870.72
  5. Step 5: Solve for x
    x = 43,334,298,870.72/217,069.60
  6. Step 6: Final answer
    x = 199,633.20

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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.