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Finding the Fourth Proportional to 272.70, 374.76 and 260.01

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Solution

The fourth proportional to 272.70, 374.76 and 260.01 is: 357.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    272.70 : 374.76 = 260.01 : x
  2. Step 2: Convert to fraction form
    272.70/374.76 = 260.01/x
  3. Step 3: Cross multiply
    272.70x = 374.76 × 260.01
  4. Step 4: Simplify right side
    272.70x = 97,441.35
  5. Step 5: Solve for x
    x = 97,441.35/272.70
  6. Step 6: Final answer
    x = 357.32

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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.