Finding the Fourth Proportional to 316,993.41, 437,099.63 and 202,090.05
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Solution
The fourth proportional to 316,993.41, 437,099.63 and 202,090.05 is: 278,660.32
Step by Step Solution
- Step 1: Write the proportion equation
316,993.41 : 437,099.63 = 202,090.05 : x - Step 2: Convert to fraction form
316,993.41/437,099.63 = 202,090.05/x - Step 3: Cross multiply
316,993.41x = 437,099.63 × 202,090.05 - Step 4: Simplify right side
316,993.41x = 88,333,485,071.23 - Step 5: Solve for x
x = 88,333,485,071.23/316,993.41 - Step 6: Final answer
x = 278,660.32
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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.