Finding the Fourth Proportional to 371,403.09, 556,735.56 and 221,418.63
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Solution
The fourth proportional to 371,403.09, 556,735.56 and 221,418.63 is: 331,907.91
Step by Step Solution
- Step 1: Write the proportion equation
371,403.09 : 556,735.56 = 221,418.63 : x - Step 2: Convert to fraction form
371,403.09/556,735.56 = 221,418.63/x - Step 3: Cross multiply
371,403.09x = 556,735.56 × 221,418.63 - Step 4: Simplify right side
371,403.09x = 123,271,624,967.48 - Step 5: Solve for x
x = 123,271,624,967.48/371,403.09 - Step 6: Final answer
x = 331,907.91
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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.