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Finding the Fourth Proportional to 245.88, 339.63 and 245.46

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Solution

The fourth proportional to 245.88, 339.63 and 245.46 is: 339.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    245.88 : 339.63 = 245.46 : x
  2. Step 2: Convert to fraction form
    245.88/339.63 = 245.46/x
  3. Step 3: Cross multiply
    245.88x = 339.63 × 245.46
  4. Step 4: Simplify right side
    245.88x = 83,365.58
  5. Step 5: Solve for x
    x = 83,365.58/245.88
  6. Step 6: Final answer
    x = 339.05

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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.