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Finding the Fourth Proportional to 270,859.80, 406,289.70 and 203,937.60

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Solution

The fourth proportional to 270,859.80, 406,289.70 and 203,937.60 is: 305,906.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    270,859.80 : 406,289.70 = 203,937.60 : x
  2. Step 2: Convert to fraction form
    270,859.80/406,289.70 = 203,937.60/x
  3. Step 3: Cross multiply
    270,859.80x = 406,289.70 × 203,937.60
  4. Step 4: Simplify right side
    270,859.80x = 82,857,746,322.72
  5. Step 5: Solve for x
    x = 82,857,746,322.72/270,859.80
  6. Step 6: Final answer
    x = 305,906.40

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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.