Finding the Fourth Proportional to 389,415.75, 537,393.74 and 210,567.75
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Solution
The fourth proportional to 389,415.75, 537,393.74 and 210,567.75 is: 290,583.50
Step by Step Solution
- Step 1: Write the proportion equation
389,415.75 : 537,393.74 = 210,567.75 : x - Step 2: Convert to fraction form
389,415.75/537,393.74 = 210,567.75/x - Step 3: Cross multiply
389,415.75x = 537,393.74 × 210,567.75 - Step 4: Simplify right side
389,415.75x = 113,157,789,643.05 - Step 5: Solve for x
x = 113,157,789,643.05/389,415.75 - Step 6: Final answer
x = 290,583.50
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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.