Finding the Fourth Proportional to 205,535.49, 283,619.05 and 129,030.13
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Solution
The fourth proportional to 205,535.49, 283,619.05 and 129,030.13 is: 178,049.07
Step by Step Solution
- Step 1: Write the proportion equation
205,535.49 : 283,619.05 = 129,030.13 : x - Step 2: Convert to fraction form
205,535.49/283,619.05 = 129,030.13/x - Step 3: Cross multiply
205,535.49x = 283,619.05 × 129,030.13 - Step 4: Simplify right side
205,535.49x = 36,595,402,955.87 - Step 5: Solve for x
x = 36,595,402,955.87/205,535.49 - Step 6: Final answer
x = 178,049.07
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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.