Finding the Fourth Proportional to 382,973.54, 528,493.16 and 213,207.68
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Solution
The fourth proportional to 382,973.54, 528,493.16 and 213,207.68 is: 294,220.85
Step by Step Solution
- Step 1: Write the proportion equation
382,973.54 : 528,493.16 = 213,207.68 : x - Step 2: Convert to fraction form
382,973.54/528,493.16 = 213,207.68/x - Step 3: Cross multiply
382,973.54x = 528,493.16 × 213,207.68 - Step 4: Simplify right side
382,973.54x = 112,678,800,539.47 - Step 5: Solve for x
x = 112,678,800,539.47/382,973.54 - Step 6: Final answer
x = 294,220.85
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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.