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Finding the Fourth Proportional to 272.99, 407.27 and 245.58

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Solution

The fourth proportional to 272.99, 407.27 and 245.58 is: 366.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    272.99 : 407.27 = 245.58 : x
  2. Step 2: Convert to fraction form
    272.99/407.27 = 245.58/x
  3. Step 3: Cross multiply
    272.99x = 407.27 × 245.58
  4. Step 4: Simplify right side
    272.99x = 100,017.98
  5. Step 5: Solve for x
    x = 100,017.98/272.99
  6. Step 6: Final answer
    x = 366.39

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.