Finding the Fourth Proportional to 371,509.15, 512,684.60 and 210,395.56
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Solution
The fourth proportional to 371,509.15, 512,684.60 and 210,395.56 is: 290,346.99
Step by Step Solution
- Step 1: Write the proportion equation
371,509.15 : 512,684.60 = 210,395.56 : x - Step 2: Convert to fraction form
371,509.15/512,684.60 = 210,395.56/x - Step 3: Cross multiply
371,509.15x = 512,684.60 × 210,395.56 - Step 4: Simplify right side
371,509.15x = 107,866,561,186.69 - Step 5: Solve for x
x = 107,866,561,186.69/371,509.15 - Step 6: Final answer
x = 290,346.99
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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.