Finding the Fourth Proportional to 198,374.86, 273,751.95 and 107,726.68
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Solution
The fourth proportional to 198,374.86, 273,751.95 and 107,726.68 is: 148,659.91
Step by Step Solution
- Step 1: Write the proportion equation
198,374.86 : 273,751.95 = 107,726.68 : x - Step 2: Convert to fraction form
198,374.86/273,751.95 = 107,726.68/x - Step 3: Cross multiply
198,374.86x = 273,751.95 × 107,726.68 - Step 4: Simplify right side
198,374.86x = 29,490,388,717.03 - Step 5: Solve for x
x = 29,490,388,717.03/198,374.86 - Step 6: Final answer
x = 148,659.91
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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.