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Finding the Fourth Proportional to 274,100.16, 378,266.52 and 153,246.54

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Solution

The fourth proportional to 274,100.16, 378,266.52 and 153,246.54 is: 211,484.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    274,100.16 : 378,266.52 = 153,246.54 : x
  2. Step 2: Convert to fraction form
    274,100.16/378,266.52 = 153,246.54/x
  3. Step 3: Cross multiply
    274,100.16x = 378,266.52 × 153,246.54
  4. Step 4: Simplify right side
    274,100.16x = 57,968,035,387.84
  5. Step 5: Solve for x
    x = 57,968,035,387.84/274,100.16
  6. Step 6: Final answer
    x = 211,484.87

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.