Finding the Fourth Proportional to 219,620.26, 303,108.47 and 139,055.26
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Solution
The fourth proportional to 219,620.26, 303,108.47 and 139,055.26 is: 191,916.84
Step by Step Solution
- Step 1: Write the proportion equation
219,620.26 : 303,108.47 = 139,055.26 : x - Step 2: Convert to fraction form
219,620.26/303,108.47 = 139,055.26/x - Step 3: Cross multiply
219,620.26x = 303,108.47 × 139,055.26 - Step 4: Simplify right side
219,620.26x = 42,148,827,104.05 - Step 5: Solve for x
x = 42,148,827,104.05/219,620.26 - Step 6: Final answer
x = 191,916.84
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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.