Finding the Fourth Proportional to 282,135.02, 389,346.34 and 161,278.94
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Solution
The fourth proportional to 282,135.02, 389,346.34 and 161,278.94 is: 222,564.94
Step by Step Solution
- Step 1: Write the proportion equation
282,135.02 : 389,346.34 = 161,278.94 : x - Step 2: Convert to fraction form
282,135.02/389,346.34 = 161,278.94/x - Step 3: Cross multiply
282,135.02x = 389,346.34 × 161,278.94 - Step 4: Simplify right side
282,135.02x = 62,793,365,008.08 - Step 5: Solve for x
x = 62,793,365,008.08/282,135.02 - Step 6: Final answer
x = 222,564.94
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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.