Finding the Fourth Proportional to 405,643.16, 607,533.09 and 202,616.09
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Solution
The fourth proportional to 405,643.16, 607,533.09 and 202,616.09 is: 303,458.78
Step by Step Solution
- Step 1: Write the proportion equation
405,643.16 : 607,533.09 = 202,616.09 : x - Step 2: Convert to fraction form
405,643.16/607,533.09 = 202,616.09/x - Step 3: Cross multiply
405,643.16x = 607,533.09 × 202,616.09 - Step 4: Simplify right side
405,643.16x = 123,095,979,241.42 - Step 5: Solve for x
x = 123,095,979,241.42/405,643.16 - Step 6: Final answer
x = 303,458.78
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.