Finding the Fourth Proportional to 388,537.68, 536,261.76 and 245,201.52
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Solution
The fourth proportional to 388,537.68, 536,261.76 and 245,201.52 is: 338,428.43
Step by Step Solution
- Step 1: Write the proportion equation
388,537.68 : 536,261.76 = 245,201.52 : x - Step 2: Convert to fraction form
388,537.68/536,261.76 = 245,201.52/x - Step 3: Cross multiply
388,537.68x = 536,261.76 × 245,201.52 - Step 4: Simplify right side
388,537.68x = 131,492,198,669.88 - Step 5: Solve for x
x = 131,492,198,669.88/388,537.68 - Step 6: Final answer
x = 338,428.43
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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.