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Finding the Fourth Proportional to 358.96, 534.44 and 354.64

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Solution

The fourth proportional to 358.96, 534.44 and 354.64 is: 528.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    358.96 : 534.44 = 354.64 : x
  2. Step 2: Convert to fraction form
    358.96/534.44 = 354.64/x
  3. Step 3: Cross multiply
    358.96x = 534.44 × 354.64
  4. Step 4: Simplify right side
    358.96x = 189,533.80
  5. Step 5: Solve for x
    x = 189,533.80/358.96
  6. Step 6: Final answer
    x = 528.01

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.