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Finding the Fourth Proportional to 610.98, 916.12 and 200.00

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Solution

The fourth proportional to 610.98, 916.12 and 200.00 is: 299.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    610.98 : 916.12 = 200.00 : x
  2. Step 2: Convert to fraction form
    610.98/916.12 = 200.00/x
  3. Step 3: Cross multiply
    610.98x = 916.12 × 200.00
  4. Step 4: Simplify right side
    610.98x = 183,226.54
  5. Step 5: Solve for x
    x = 183,226.54/610.98
  6. Step 6: Final answer
    x = 299.89

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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.