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Finding the Fourth Proportional to 1,088.90, 1,633.44 and 358.54

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Solution

The fourth proportional to 1,088.90, 1,633.44 and 358.54 is: 537.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,088.90 : 1,633.44 = 358.54 : x
  2. Step 2: Convert to fraction form
    1,088.90/1,633.44 = 358.54/x
  3. Step 3: Cross multiply
    1,088.90x = 1,633.44 × 358.54
  4. Step 4: Simplify right side
    1,088.90x = 585,653.58
  5. Step 5: Solve for x
    x = 585,653.58/1,088.90
  6. Step 6: Final answer
    x = 537.84

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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.