Finding the Fourth Proportional to 332.05, 497.42 and 257.99
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Solution
The fourth proportional to 332.05, 497.42 and 257.99 is: 386.47
Step by Step Solution
- Step 1: Write the proportion equation
332.05 : 497.42 = 257.99 : x - Step 2: Convert to fraction form
332.05/497.42 = 257.99/x - Step 3: Cross multiply
332.05x = 497.42 × 257.99 - Step 4: Simplify right side
332.05x = 128,328.03 - Step 5: Solve for x
x = 128,328.03/332.05 - Step 6: Final answer
x = 386.47
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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.