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Finding the Fourth Proportional to 984.23, 1,476.50 and 368.03

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Solution

The fourth proportional to 984.23, 1,476.50 and 368.03 is: 552.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    984.23 : 1,476.50 = 368.03 : x
  2. Step 2: Convert to fraction form
    984.23/1,476.50 = 368.03/x
  3. Step 3: Cross multiply
    984.23x = 1,476.50 × 368.03
  4. Step 4: Simplify right side
    984.23x = 543,389.83
  5. Step 5: Solve for x
    x = 543,389.83/984.23
  6. Step 6: Final answer
    x = 552.09

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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.