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Finding the Fourth Proportional to 270,300.36, 405,516.48 and 190,493.88

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Solution

The fourth proportional to 270,300.36, 405,516.48 and 190,493.88 is: 285,787.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    270,300.36 : 405,516.48 = 190,493.88 : x
  2. Step 2: Convert to fraction form
    270,300.36/405,516.48 = 190,493.88/x
  3. Step 3: Cross multiply
    270,300.36x = 405,516.48 × 190,493.88
  4. Step 4: Simplify right side
    270,300.36x = 77,248,407,679.14
  5. Step 5: Solve for x
    x = 77,248,407,679.14/270,300.36
  6. Step 6: Final answer
    x = 285,787.29

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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.