Finding the Fourth Proportional to 438,425.96, 657,658.08 and 138,928.62
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Solution
The fourth proportional to 438,425.96, 657,658.08 and 138,928.62 is: 208,399.00
Step by Step Solution
- Step 1: Write the proportion equation
438,425.96 : 657,658.08 = 138,928.62 : x - Step 2: Convert to fraction form
438,425.96/657,658.08 = 138,928.62/x - Step 3: Cross multiply
438,425.96x = 657,658.08 × 138,928.62 - Step 4: Simplify right side
438,425.96x = 91,367,529,486.25 - Step 5: Solve for x
x = 91,367,529,486.25/438,425.96 - Step 6: Final answer
x = 208,399.00
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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.