Finding the Fourth Proportional to 219,962.63, 303,545.18 and 129,328.79
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Solution
The fourth proportional to 219,962.63, 303,545.18 and 129,328.79 is: 178,471.82
Step by Step Solution
- Step 1: Write the proportion equation
219,962.63 : 303,545.18 = 129,328.79 : x - Step 2: Convert to fraction form
219,962.63/303,545.18 = 129,328.79/x - Step 3: Cross multiply
219,962.63x = 303,545.18 × 129,328.79 - Step 4: Simplify right side
219,962.63x = 39,257,129,322.01 - Step 5: Solve for x
x = 39,257,129,322.01/219,962.63 - Step 6: Final answer
x = 178,471.82
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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.