Finding the Fourth Proportional to 386.51, 533.63 and 344.99
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Solution
The fourth proportional to 386.51, 533.63 and 344.99 is: 476.31
Step by Step Solution
- Step 1: Write the proportion equation
386.51 : 533.63 = 344.99 : x - Step 2: Convert to fraction form
386.51/533.63 = 344.99/x - Step 3: Cross multiply
386.51x = 533.63 × 344.99 - Step 4: Simplify right side
386.51x = 184,097.01 - Step 5: Solve for x
x = 184,097.01/386.51 - Step 6: Final answer
x = 476.31
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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.