Finding the Fourth Proportional to 304.99, 420.93 and 231.18
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Solution
The fourth proportional to 304.99, 420.93 and 231.18 is: 319.06
Step by Step Solution
- Step 1: Write the proportion equation
304.99 : 420.93 = 231.18 : x - Step 2: Convert to fraction form
304.99/420.93 = 231.18/x - Step 3: Cross multiply
304.99x = 420.93 × 231.18 - Step 4: Simplify right side
304.99x = 97,310.60 - Step 5: Solve for x
x = 97,310.60/304.99 - Step 6: Final answer
x = 319.06
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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.