Finding the Fourth Proportional to 368,415.40, 552,623.10 and 131,765.80
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Solution
The fourth proportional to 368,415.40, 552,623.10 and 131,765.80 is: 197,648.70
Step by Step Solution
- Step 1: Write the proportion equation
368,415.40 : 552,623.10 = 131,765.80 : x - Step 2: Convert to fraction form
368,415.40/552,623.10 = 131,765.80/x - Step 3: Cross multiply
368,415.40x = 552,623.10 × 131,765.80 - Step 4: Simplify right side
368,415.40x = 72,816,824,869.98 - Step 5: Solve for x
x = 72,816,824,869.98/368,415.40 - Step 6: Final answer
x = 197,648.70
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.