Finding the Fourth Proportional to 198,353.53, 273,726.86 and 107,708.70
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Solution
The fourth proportional to 198,353.53, 273,726.86 and 107,708.70 is: 148,637.46
Step by Step Solution
- Step 1: Write the proportion equation
198,353.53 : 273,726.86 = 107,708.70 : x - Step 2: Convert to fraction form
198,353.53/273,726.86 = 107,708.70/x - Step 3: Cross multiply
198,353.53x = 273,726.86 × 107,708.70 - Step 4: Simplify right side
198,353.53x = 29,482,763,707.14 - Step 5: Solve for x
x = 29,482,763,707.14/198,353.53 - Step 6: Final answer
x = 148,637.46
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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.