Finding the Fourth Proportional to 372,030.26, 513,405.40 and 202,268.02
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Solution
The fourth proportional to 372,030.26, 513,405.40 and 202,268.02 is: 279,131.85
Step by Step Solution
- Step 1: Write the proportion equation
372,030.26 : 513,405.40 = 202,268.02 : x - Step 2: Convert to fraction form
372,030.26/513,405.40 = 202,268.02/x - Step 3: Cross multiply
372,030.26x = 513,405.40 × 202,268.02 - Step 4: Simplify right side
372,030.26x = 103,845,493,715.31 - Step 5: Solve for x
x = 103,845,493,715.31/372,030.26 - Step 6: Final answer
x = 279,131.85
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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.