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Finding the Fourth Proportional to 227.53, 314.03 and 139.07

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Solution

The fourth proportional to 227.53, 314.03 and 139.07 is: 191.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    227.53 : 314.03 = 139.07 : x
  2. Step 2: Convert to fraction form
    227.53/314.03 = 139.07/x
  3. Step 3: Cross multiply
    227.53x = 314.03 × 139.07
  4. Step 4: Simplify right side
    227.53x = 43,670.67
  5. Step 5: Solve for x
    x = 43,670.67/227.53
  6. Step 6: Final answer
    x = 191.93

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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.