Finding the Fourth Proportional to 282,119.80, 389,325.28 and 161,263.68
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Solution
The fourth proportional to 282,119.80, 389,325.28 and 161,263.68 is: 222,543.85
Step by Step Solution
- Step 1: Write the proportion equation
282,119.80 : 389,325.28 = 161,263.68 : x - Step 2: Convert to fraction form
282,119.80/389,325.28 = 161,263.68/x - Step 3: Cross multiply
282,119.80x = 389,325.28 × 161,263.68 - Step 4: Simplify right side
282,119.80x = 62,784,027,369.83 - Step 5: Solve for x
x = 62,784,027,369.83/282,119.80 - Step 6: Final answer
x = 222,543.85
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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.