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Finding the Fourth Proportional to 559.27, 837.81 and 285.04

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Solution

The fourth proportional to 559.27, 837.81 and 285.04 is: 427.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    559.27 : 837.81 = 285.04 : x
  2. Step 2: Convert to fraction form
    559.27/837.81 = 285.04/x
  3. Step 3: Cross multiply
    559.27x = 837.81 × 285.04
  4. Step 4: Simplify right side
    559.27x = 238,809.36
  5. Step 5: Solve for x
    x = 238,809.36/559.27
  6. Step 6: Final answer
    x = 427.00

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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.