Finding the Fourth Proportional to 382,791.36, 528,192.48 and 213,024.96
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Solution
The fourth proportional to 382,791.36, 528,192.48 and 213,024.96 is: 293,941.28
Step by Step Solution
- Step 1: Write the proportion equation
382,791.36 : 528,192.48 = 213,024.96 : x - Step 2: Convert to fraction form
382,791.36/528,192.48 = 213,024.96/x - Step 3: Cross multiply
382,791.36x = 528,192.48 × 213,024.96 - Step 4: Simplify right side
382,791.36x = 112,518,181,924.30 - Step 5: Solve for x
x = 112,518,181,924.30/382,791.36 - Step 6: Final answer
x = 293,941.28
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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.