Finding the Fourth Proportional to 198,495.79, 273,920.86 and 107,853.14
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Solution
The fourth proportional to 198,495.79, 273,920.86 and 107,853.14 is: 148,835.52
Step by Step Solution
- Step 1: Write the proportion equation
198,495.79 : 273,920.86 = 107,853.14 : x - Step 2: Convert to fraction form
198,495.79/273,920.86 = 107,853.14/x - Step 3: Cross multiply
198,495.79x = 273,920.86 × 107,853.14 - Step 4: Simplify right side
198,495.79x = 29,543,224,862.50 - Step 5: Solve for x
x = 29,543,224,862.50/198,495.79 - Step 6: Final answer
x = 148,835.52
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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.