Finding the Fourth Proportional to 189,643.80, 284,465.70 and 96,331.80
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Solution
The fourth proportional to 189,643.80, 284,465.70 and 96,331.80 is: 144,497.70
Step by Step Solution
- Step 1: Write the proportion equation
189,643.80 : 284,465.70 = 96,331.80 : x - Step 2: Convert to fraction form
189,643.80/284,465.70 = 96,331.80/x - Step 3: Cross multiply
189,643.80x = 284,465.70 × 96,331.80 - Step 4: Simplify right side
189,643.80x = 27,403,092,919.26 - Step 5: Solve for x
x = 27,403,092,919.26/189,643.80 - Step 6: Final answer
x = 144,497.70
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1.5x scale
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.