Finding the Fourth Proportional to 219,955.50, 303,535.35 and 129,321.66
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Solution
The fourth proportional to 219,955.50, 303,535.35 and 129,321.66 is: 178,461.99
Step by Step Solution
- Step 1: Write the proportion equation
219,955.50 : 303,535.35 = 129,321.66 : x - Step 2: Convert to fraction form
219,955.50/303,535.35 = 129,321.66/x - Step 3: Cross multiply
219,955.50x = 303,535.35 × 129,321.66 - Step 4: Simplify right side
219,955.50x = 39,253,695,330.68 - Step 5: Solve for x
x = 39,253,695,330.68/219,955.50 - Step 6: Final answer
x = 178,461.99
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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.