Finding the Fourth Proportional to 382,577.80, 528,058.74 and 269,451.40
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Solution
The fourth proportional to 382,577.80, 528,058.74 and 269,451.40 is: 371,914.33
Step by Step Solution
- Step 1: Write the proportion equation
382,577.80 : 528,058.74 = 269,451.40 : x - Step 2: Convert to fraction form
382,577.80/528,058.74 = 269,451.40/x - Step 3: Cross multiply
382,577.80x = 528,058.74 × 269,451.40 - Step 4: Simplify right side
382,577.80x = 142,286,166,775.24 - Step 5: Solve for x
x = 142,286,166,775.24/382,577.80 - Step 6: Final answer
x = 371,914.33
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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.