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Finding the Fourth Proportional to 479.07, 660.83 and 304.52

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Solution

The fourth proportional to 479.07, 660.83 and 304.52 is: 420.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    479.07 : 660.83 = 304.52 : x
  2. Step 2: Convert to fraction form
    479.07/660.83 = 304.52/x
  3. Step 3: Cross multiply
    479.07x = 660.83 × 304.52
  4. Step 4: Simplify right side
    479.07x = 201,231.12
  5. Step 5: Solve for x
    x = 201,231.12/479.07
  6. Step 6: Final answer
    x = 420.05

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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.