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Finding the Fourth Proportional to 153.17, 228.27 and 151.89

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Solution

The fourth proportional to 153.17, 228.27 and 151.89 is: 226.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    153.17 : 228.27 = 151.89 : x
  2. Step 2: Convert to fraction form
    153.17/228.27 = 151.89/x
  3. Step 3: Cross multiply
    153.17x = 228.27 × 151.89
  4. Step 4: Simplify right side
    153.17x = 34,671.93
  5. Step 5: Solve for x
    x = 34,671.93/153.17
  6. Step 6: Final answer
    x = 226.37

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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.