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Finding the Fourth Proportional to 358.60, 536.58 and 312.28

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Solution

The fourth proportional to 358.60, 536.58 and 312.28 is: 467.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    358.60 : 536.58 = 312.28 : x
  2. Step 2: Convert to fraction form
    358.60/536.58 = 312.28/x
  3. Step 3: Cross multiply
    358.60x = 536.58 × 312.28
  4. Step 4: Simplify right side
    358.60x = 167,563.20
  5. Step 5: Solve for x
    x = 167,563.20/358.60
  6. Step 6: Final answer
    x = 467.27

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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.