Finding the Fourth Proportional to 248,603.80, 372,905.70 and 82,391.80
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Solution
The fourth proportional to 248,603.80, 372,905.70 and 82,391.80 is: 123,587.70
Step by Step Solution
- Step 1: Write the proportion equation
248,603.80 : 372,905.70 = 82,391.80 : x - Step 2: Convert to fraction form
248,603.80/372,905.70 = 82,391.80/x - Step 3: Cross multiply
248,603.80x = 372,905.70 × 82,391.80 - Step 4: Simplify right side
248,603.80x = 30,724,371,853.26 - Step 5: Solve for x
x = 30,724,371,853.26/248,603.80 - Step 6: Final answer
x = 123,587.70
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.