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Finding the Fourth Proportional to 524.54, 786.59 and 154.22

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Solution

The fourth proportional to 524.54, 786.59 and 154.22 is: 231.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    524.54 : 786.59 = 154.22 : x
  2. Step 2: Convert to fraction form
    524.54/786.59 = 154.22/x
  3. Step 3: Cross multiply
    524.54x = 786.59 × 154.22
  4. Step 4: Simplify right side
    524.54x = 121,303.21
  5. Step 5: Solve for x
    x = 121,303.21/524.54
  6. Step 6: Final answer
    x = 231.26

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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.