Finding the Fourth Proportional to 368.93, 509.19 and 306.68
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Solution
The fourth proportional to 368.93, 509.19 and 306.68 is: 423.27
Step by Step Solution
- Step 1: Write the proportion equation
368.93 : 509.19 = 306.68 : x - Step 2: Convert to fraction form
368.93/509.19 = 306.68/x - Step 3: Cross multiply
368.93x = 509.19 × 306.68 - Step 4: Simplify right side
368.93x = 156,158.39 - Step 5: Solve for x
x = 156,158.39/368.93 - Step 6: Final answer
x = 423.27
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.