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Finding the Fourth Proportional to 611.00, 916.62 and 200.16

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Solution

The fourth proportional to 611.00, 916.62 and 200.16 is: 300.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    611.00 : 916.62 = 200.16 : x
  2. Step 2: Convert to fraction form
    611.00/916.62 = 200.16/x
  3. Step 3: Cross multiply
    611.00x = 916.62 × 200.16
  4. Step 4: Simplify right side
    611.00x = 183,472.49
  5. Step 5: Solve for x
    x = 183,472.49/611.00
  6. Step 6: Final answer
    x = 300.28

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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.