Finding the Fourth Proportional to 286,146.10, 394,916.61 and 158,862.70
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Solution
The fourth proportional to 286,146.10, 394,916.61 and 158,862.70 is: 219,249.95
Step by Step Solution
- Step 1: Write the proportion equation
286,146.10 : 394,916.61 = 158,862.70 : x - Step 2: Convert to fraction form
286,146.10/394,916.61 = 158,862.70/x - Step 3: Cross multiply
286,146.10x = 394,916.61 × 158,862.70 - Step 4: Simplify right side
286,146.10x = 62,737,518,939.45 - Step 5: Solve for x
x = 62,737,518,939.45/286,146.10 - Step 6: Final answer
x = 219,249.95
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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.