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Finding the Fourth Proportional to 487.22, 730.06 and 304.05

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Solution

The fourth proportional to 487.22, 730.06 and 304.05 is: 455.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    487.22 : 730.06 = 304.05 : x
  2. Step 2: Convert to fraction form
    487.22/730.06 = 304.05/x
  3. Step 3: Cross multiply
    487.22x = 730.06 × 304.05
  4. Step 4: Simplify right side
    487.22x = 221,978.43
  5. Step 5: Solve for x
    x = 221,978.43/487.22
  6. Step 6: Final answer
    x = 455.61

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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.