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Finding the Fourth Proportional to 461.70, 637.10 and 262.50

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Solution

The fourth proportional to 461.70, 637.10 and 262.50 is: 362.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    461.70 : 637.10 = 262.50 : x
  2. Step 2: Convert to fraction form
    461.70/637.10 = 262.50/x
  3. Step 3: Cross multiply
    461.70x = 637.10 × 262.50
  4. Step 4: Simplify right side
    461.70x = 167,238.75
  5. Step 5: Solve for x
    x = 167,238.75/461.70
  6. Step 6: Final answer
    x = 362.22

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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.