Finding the Fourth Proportional to 163,811.80, 245,717.70 and 53,003.80
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Solution
The fourth proportional to 163,811.80, 245,717.70 and 53,003.80 is: 79,505.70
Step by Step Solution
- Step 1: Write the proportion equation
163,811.80 : 245,717.70 = 53,003.80 : x - Step 2: Convert to fraction form
163,811.80/245,717.70 = 53,003.80/x - Step 3: Cross multiply
163,811.80x = 245,717.70 × 53,003.80 - Step 4: Simplify right side
163,811.80x = 13,023,971,827.26 - Step 5: Solve for x
x = 13,023,971,827.26/163,811.80 - Step 6: Final answer
x = 79,505.70
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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.