Finding the Fourth Proportional to 282,664.15, 390,129.08 and 161,805.44
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Solution
The fourth proportional to 282,664.15, 390,129.08 and 161,805.44 is: 223,321.59
Step by Step Solution
- Step 1: Write the proportion equation
282,664.15 : 390,129.08 = 161,805.44 : x - Step 2: Convert to fraction form
282,664.15/390,129.08 = 161,805.44/x - Step 3: Cross multiply
282,664.15x = 390,129.08 × 161,805.44 - Step 4: Simplify right side
282,664.15x = 63,125,008,191.45 - Step 5: Solve for x
x = 63,125,008,191.45/282,664.15 - Step 6: Final answer
x = 223,321.59
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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.