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Finding the Fourth Proportional to 270.93, 374.18 and 260.61

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Solution

The fourth proportional to 270.93, 374.18 and 260.61 is: 359.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    270.93 : 374.18 = 260.61 : x
  2. Step 2: Convert to fraction form
    270.93/374.18 = 260.61/x
  3. Step 3: Cross multiply
    270.93x = 374.18 × 260.61
  4. Step 4: Simplify right side
    270.93x = 97,515.05
  5. Step 5: Solve for x
    x = 97,515.05/270.93
  6. Step 6: Final answer
    x = 359.93

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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.