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Finding the Fourth Proportional to 610.43, 916.11 and 245.45

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Solution

The fourth proportional to 610.43, 916.11 and 245.45 is: 368.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    610.43 : 916.11 = 245.45 : x
  2. Step 2: Convert to fraction form
    610.43/916.11 = 245.45/x
  3. Step 3: Cross multiply
    610.43x = 916.11 × 245.45
  4. Step 4: Simplify right side
    610.43x = 224,861.49
  5. Step 5: Solve for x
    x = 224,861.49/610.43
  6. Step 6: Final answer
    x = 368.37

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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.