Finding the Fourth Proportional to 371,909.94, 513,236.43 and 202,143.66
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Solution
The fourth proportional to 371,909.94, 513,236.43 and 202,143.66 is: 278,958.64
Step by Step Solution
- Step 1: Write the proportion equation
371,909.94 : 513,236.43 = 202,143.66 : x - Step 2: Convert to fraction form
371,909.94/513,236.43 = 202,143.66/x - Step 3: Cross multiply
371,909.94x = 513,236.43 × 202,143.66 - Step 4: Simplify right side
371,909.94x = 103,747,490,405.53 - Step 5: Solve for x
x = 103,747,490,405.53/371,909.94 - Step 6: Final answer
x = 278,958.64
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1.5x scale
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.