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Finding the Fourth Proportional to 304.70, 440.60 and 304.70

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Solution

The fourth proportional to 304.70, 440.60 and 304.70 is: 440.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    304.70 : 440.60 = 304.70 : x
  2. Step 2: Convert to fraction form
    304.70/440.60 = 304.70/x
  3. Step 3: Cross multiply
    304.70x = 440.60 × 304.70
  4. Step 4: Simplify right side
    304.70x = 134,250.82
  5. Step 5: Solve for x
    x = 134,250.82/304.70
  6. Step 6: Final answer
    x = 440.60

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Why These Related Problems?

These problems maintain the same ratio (1.45) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.