Finding the Fourth Proportional to 285.23, 393.06 and 232.91
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Solution
The fourth proportional to 285.23, 393.06 and 232.91 is: 320.96
Step by Step Solution
- Step 1: Write the proportion equation
285.23 : 393.06 = 232.91 : x - Step 2: Convert to fraction form
285.23/393.06 = 232.91/x - Step 3: Cross multiply
285.23x = 393.06 × 232.91 - Step 4: Simplify right side
285.23x = 91,547.99 - Step 5: Solve for x
x = 91,547.99/285.23 - Step 6: Final answer
x = 320.96
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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.