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Finding the Fourth Proportional to 294.36, 405.90 and 242.52

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Solution

The fourth proportional to 294.36, 405.90 and 242.52 is: 334.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    294.36 : 405.90 = 242.52 : x
  2. Step 2: Convert to fraction form
    294.36/405.90 = 242.52/x
  3. Step 3: Cross multiply
    294.36x = 405.90 × 242.52
  4. Step 4: Simplify right side
    294.36x = 98,438.87
  5. Step 5: Solve for x
    x = 98,438.87/294.36
  6. Step 6: Final answer
    x = 334.42

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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.