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Finding the Fourth Proportional to 582.19, 873.26 and 143.44

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Solution

The fourth proportional to 582.19, 873.26 and 143.44 is: 215.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    582.19 : 873.26 = 143.44 : x
  2. Step 2: Convert to fraction form
    582.19/873.26 = 143.44/x
  3. Step 3: Cross multiply
    582.19x = 873.26 × 143.44
  4. Step 4: Simplify right side
    582.19x = 125,256.05
  5. Step 5: Solve for x
    x = 125,256.05/582.19
  6. Step 6: Final answer
    x = 215.15

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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.