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Finding the Fourth Proportional to 461.63, 637.09 and 254.67

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Solution

The fourth proportional to 461.63, 637.09 and 254.67 is: 351.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    461.63 : 637.09 = 254.67 : x
  2. Step 2: Convert to fraction form
    461.63/637.09 = 254.67/x
  3. Step 3: Cross multiply
    461.63x = 637.09 × 254.67
  4. Step 4: Simplify right side
    461.63x = 162,247.71
  5. Step 5: Solve for x
    x = 162,247.71/461.63
  6. Step 6: Final answer
    x = 351.47

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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.