Finding the Fourth Proportional to 216,871.26, 299,313.75 and 124,972.66
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Solution
The fourth proportional to 216,871.26, 299,313.75 and 124,972.66 is: 172,480.37
Step by Step Solution
- Step 1: Write the proportion equation
216,871.26 : 299,313.75 = 124,972.66 : x - Step 2: Convert to fraction form
216,871.26/299,313.75 = 124,972.66/x - Step 3: Cross multiply
216,871.26x = 299,313.75 × 124,972.66 - Step 4: Simplify right side
216,871.26x = 37,406,035,512.08 - Step 5: Solve for x
x = 37,406,035,512.08/216,871.26 - Step 6: Final answer
x = 172,480.37
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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.