Finding the Fourth Proportional to 369.08, 509.26 and 231
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Solution
The fourth proportional to 369.08, 509.26 and 231 is: 318.74
Step by Step Solution
- Step 1: Write the proportion equation
369.08 : 509.26 = 231 : x - Step 2: Convert to fraction form
369.08/509.26 = 231/x - Step 3: Cross multiply
369.08x = 509.26 × 231 - Step 4: Simplify right side
369.08x = 117,639.06 - Step 5: Solve for x
x = 117,639.06/369.08 - Step 6: Final answer
x = 318.74
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.