Finding the Fourth Proportional to 405,059.36, 558,975.12 and 235,294.88
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Solution
The fourth proportional to 405,059.36, 558,975.12 and 235,294.88 is: 324,702.99
Step by Step Solution
- Step 1: Write the proportion equation
405,059.36 : 558,975.12 = 235,294.88 : x - Step 2: Convert to fraction form
405,059.36/558,975.12 = 235,294.88/x - Step 3: Cross multiply
405,059.36x = 558,975.12 × 235,294.88 - Step 4: Simplify right side
405,059.36x = 131,523,983,783.39 - Step 5: Solve for x
x = 131,523,983,783.39/405,059.36 - Step 6: Final answer
x = 324,702.99
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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.