Finding the Fourth Proportional to 257,910.26, 355,916.36 and 144,733.01
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Solution
The fourth proportional to 257,910.26, 355,916.36 and 144,733.01 is: 199,731.66
Step by Step Solution
- Step 1: Write the proportion equation
257,910.26 : 355,916.36 = 144,733.01 : x - Step 2: Convert to fraction form
257,910.26/355,916.36 = 144,733.01/x - Step 3: Cross multiply
257,910.26x = 355,916.36 × 144,733.01 - Step 4: Simplify right side
257,910.26x = 51,512,845,367.38 - Step 5: Solve for x
x = 51,512,845,367.38/257,910.26 - Step 6: Final answer
x = 199,731.66
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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.