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Finding the Fourth Proportional to 245.07, 366.65 and 189.81

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Solution

The fourth proportional to 245.07, 366.65 and 189.81 is: 283.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    245.07 : 366.65 = 189.81 : x
  2. Step 2: Convert to fraction form
    245.07/366.65 = 189.81/x
  3. Step 3: Cross multiply
    245.07x = 366.65 × 189.81
  4. Step 4: Simplify right side
    245.07x = 69,592.89
  5. Step 5: Solve for x
    x = 69,592.89/245.07
  6. Step 6: Final answer
    x = 283.97

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.