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Finding the Fourth Proportional to 918.00, 1,266.42 and 544.99

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Solution

The fourth proportional to 918.00, 1,266.42 and 544.99 is: 751.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    918.00 : 1,266.42 = 544.99 : x
  2. Step 2: Convert to fraction form
    918.00/1,266.42 = 544.99/x
  3. Step 3: Cross multiply
    918.00x = 1,266.42 × 544.99
  4. Step 4: Simplify right side
    918.00x = 690,183.51
  5. Step 5: Solve for x
    x = 690,183.51/918.00
  6. Step 6: Final answer
    x = 751.84

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.