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Finding the Fourth Proportional to 837.00, 1,255.09 and 288.99

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Solution

The fourth proportional to 837.00, 1,255.09 and 288.99 is: 433.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    837.00 : 1,255.09 = 288.99 : x
  2. Step 2: Convert to fraction form
    837.00/1,255.09 = 288.99/x
  3. Step 3: Cross multiply
    837.00x = 1,255.09 × 288.99
  4. Step 4: Simplify right side
    837.00x = 362,701.46
  5. Step 5: Solve for x
    x = 362,701.46/837.00
  6. Step 6: Final answer
    x = 433.34

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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.