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Finding the Fourth Proportional to 270,879.20, 406,383.60 and 130,522.40

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Solution

The fourth proportional to 270,879.20, 406,383.60 and 130,522.40 is: 195,814.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    270,879.20 : 406,383.60 = 130,522.40 : x
  2. Step 2: Convert to fraction form
    270,879.20/406,383.60 = 130,522.40/x
  3. Step 3: Cross multiply
    270,879.20x = 406,383.60 × 130,522.40
  4. Step 4: Simplify right side
    270,879.20x = 53,042,162,792.64
  5. Step 5: Solve for x
    x = 53,042,162,792.64/270,879.20
  6. Step 6: Final answer
    x = 195,814.82

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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.