Finding the Fourth Proportional to 339.62, 509.07 and 193.19
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Solution
The fourth proportional to 339.62, 509.07 and 193.19 is: 289.58
Step by Step Solution
- Step 1: Write the proportion equation
339.62 : 509.07 = 193.19 : x - Step 2: Convert to fraction form
339.62/509.07 = 193.19/x - Step 3: Cross multiply
339.62x = 509.07 × 193.19 - Step 4: Simplify right side
339.62x = 98,347.23 - Step 5: Solve for x
x = 98,347.23/339.62 - Step 6: Final answer
x = 289.58
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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.