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Finding the Fourth Proportional to 427.04, 589.24 and 243.04

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Solution

The fourth proportional to 427.04, 589.24 and 243.04 is: 335.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    427.04 : 589.24 = 243.04 : x
  2. Step 2: Convert to fraction form
    427.04/589.24 = 243.04/x
  3. Step 3: Cross multiply
    427.04x = 589.24 × 243.04
  4. Step 4: Simplify right side
    427.04x = 143,208.89
  5. Step 5: Solve for x
    x = 143,208.89/427.04
  6. Step 6: Final answer
    x = 335.35

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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.