Finding the Fourth Proportional to 383.28, 528.91 and 235.99
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Solution
The fourth proportional to 383.28, 528.91 and 235.99 is: 325.66
Step by Step Solution
- Step 1: Write the proportion equation
383.28 : 528.91 = 235.99 : x - Step 2: Convert to fraction form
383.28/528.91 = 235.99/x - Step 3: Cross multiply
383.28x = 528.91 × 235.99 - Step 4: Simplify right side
383.28x = 124,817.47 - Step 5: Solve for x
x = 124,817.47/383.28 - Step 6: Final answer
x = 325.66
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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.