Finding the Fourth Proportional to 299,639.17, 412,798.44 and 208,830.07
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Solution
The fourth proportional to 299,639.17, 412,798.44 and 208,830.07 is: 287,695.12
Step by Step Solution
- Step 1: Write the proportion equation
299,639.17 : 412,798.44 = 208,830.07 : x - Step 2: Convert to fraction form
299,639.17/412,798.44 = 208,830.07/x - Step 3: Cross multiply
299,639.17x = 412,798.44 × 208,830.07 - Step 4: Simplify right side
299,639.17x = 86,204,727,121.09 - Step 5: Solve for x
x = 86,204,727,121.09/299,639.17 - Step 6: Final answer
x = 287,695.12
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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.