Finding the Fourth Proportional to 225,243.36, 310,821.84 and 124,643.52
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Solution
The fourth proportional to 225,243.36, 310,821.84 and 124,643.52 is: 172,000.31
Step by Step Solution
- Step 1: Write the proportion equation
225,243.36 : 310,821.84 = 124,643.52 : x - Step 2: Convert to fraction form
225,243.36/310,821.84 = 124,643.52/x - Step 3: Cross multiply
225,243.36x = 310,821.84 × 124,643.52 - Step 4: Simplify right side
225,243.36x = 38,741,928,230.48 - Step 5: Solve for x
x = 38,741,928,230.48/225,243.36 - Step 6: Final answer
x = 172,000.31
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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.