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Finding the Fourth Proportional to 245.58, 337.06 and 218.75

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Solution

The fourth proportional to 245.58, 337.06 and 218.75 is: 300.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    245.58 : 337.06 = 218.75 : x
  2. Step 2: Convert to fraction form
    245.58/337.06 = 218.75/x
  3. Step 3: Cross multiply
    245.58x = 337.06 × 218.75
  4. Step 4: Simplify right side
    245.58x = 73,732.36
  5. Step 5: Solve for x
    x = 73,732.36/245.58
  6. Step 6: Final answer
    x = 300.24

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.