Finding the Fourth Proportional to 203,218.13, 280,437.99 and 112,573.82
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Solution
The fourth proportional to 203,218.13, 280,437.99 and 112,573.82 is: 155,350.19
Step by Step Solution
- Step 1: Write the proportion equation
203,218.13 : 280,437.99 = 112,573.82 : x - Step 2: Convert to fraction form
203,218.13/280,437.99 = 112,573.82/x - Step 3: Cross multiply
203,218.13x = 280,437.99 × 112,573.82 - Step 4: Simplify right side
203,218.13x = 31,569,975,807.42 - Step 5: Solve for x
x = 31,569,975,807.42/203,218.13 - Step 6: Final answer
x = 155,350.19
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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.