Finding the Fourth Proportional to 233.99, 322.91 and 135.74
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Solution
The fourth proportional to 233.99, 322.91 and 135.74 is: 187.33
Step by Step Solution
- Step 1: Write the proportion equation
233.99 : 322.91 = 135.74 : x - Step 2: Convert to fraction form
233.99/322.91 = 135.74/x - Step 3: Cross multiply
233.99x = 322.91 × 135.74 - Step 4: Simplify right side
233.99x = 43,832.14 - Step 5: Solve for x
x = 43,832.14/233.99 - Step 6: Final answer
x = 187.33
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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.