Finding the Fourth Proportional to 235.91, 325.54 and 130.99
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Solution
The fourth proportional to 235.91, 325.54 and 130.99 is: 180.76
Step by Step Solution
- Step 1: Write the proportion equation
235.91 : 325.54 = 130.99 : x - Step 2: Convert to fraction form
235.91/325.54 = 130.99/x - Step 3: Cross multiply
235.91x = 325.54 × 130.99 - Step 4: Simplify right side
235.91x = 42,643.73 - Step 5: Solve for x
x = 42,643.73/235.91 - Step 6: Final answer
x = 180.76
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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.