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Finding the Fourth Proportional to 159.99, 219.33 and 157.26

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Solution

The fourth proportional to 159.99, 219.33 and 157.26 is: 215.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    159.99 : 219.33 = 157.26 : x
  2. Step 2: Convert to fraction form
    159.99/219.33 = 157.26/x
  3. Step 3: Cross multiply
    159.99x = 219.33 × 157.26
  4. Step 4: Simplify right side
    159.99x = 34,491.84
  5. Step 5: Solve for x
    x = 34,491.84/159.99
  6. Step 6: Final answer
    x = 215.59

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These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.