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Finding the Fourth Proportional to 271,805.10, 407,707.65 and 84,792.30

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Solution

The fourth proportional to 271,805.10, 407,707.65 and 84,792.30 is: 127,188.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    271,805.10 : 407,707.65 = 84,792.30 : x
  2. Step 2: Convert to fraction form
    271,805.10/407,707.65 = 84,792.30/x
  3. Step 3: Cross multiply
    271,805.10x = 407,707.65 × 84,792.30
  4. Step 4: Simplify right side
    271,805.10x = 34,570,469,371.10
  5. Step 5: Solve for x
    x = 34,570,469,371.10/271,805.10
  6. Step 6: Final answer
    x = 127,188.45

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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.