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Finding the Fourth Proportional to 153.41, 228.75 and 149.06

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Solution

The fourth proportional to 153.41, 228.75 and 149.06 is: 222.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    153.41 : 228.75 = 149.06 : x
  2. Step 2: Convert to fraction form
    153.41/228.75 = 149.06/x
  3. Step 3: Cross multiply
    153.41x = 228.75 × 149.06
  4. Step 4: Simplify right side
    153.41x = 34,096.33
  5. Step 5: Solve for x
    x = 34,096.33/153.41
  6. Step 6: Final answer
    x = 222.26

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.