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Finding the Fourth Proportional to 270,301.36, 405,517.98 and 190,494.88

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Solution

The fourth proportional to 270,301.36, 405,517.98 and 190,494.88 is: 285,788.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    270,301.36 : 405,517.98 = 190,494.88 : x
  2. Step 2: Convert to fraction form
    270,301.36/405,517.98 = 190,494.88/x
  3. Step 3: Cross multiply
    270,301.36x = 405,517.98 × 190,494.88
  4. Step 4: Simplify right side
    270,301.36x = 77,249,098,937.94
  5. Step 5: Solve for x
    x = 77,249,098,937.94/270,301.36
  6. Step 6: Final answer
    x = 285,788.79

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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.