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Finding the Fourth Proportional to 307.47, 460.77 and 153.17

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Solution

The fourth proportional to 307.47, 460.77 and 153.17 is: 229.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    307.47 : 460.77 = 153.17 : x
  2. Step 2: Convert to fraction form
    307.47/460.77 = 153.17/x
  3. Step 3: Cross multiply
    307.47x = 460.77 × 153.17
  4. Step 4: Simplify right side
    307.47x = 70,576.14
  5. Step 5: Solve for x
    x = 70,576.14/307.47
  6. Step 6: Final answer
    x = 229.54

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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.