Finding the Fourth Proportional to 163,819.80, 245,729.70 and 53,011.80
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Solution
The fourth proportional to 163,819.80, 245,729.70 and 53,011.80 is: 79,517.70
Step by Step Solution
- Step 1: Write the proportion equation
163,819.80 : 245,729.70 = 53,011.80 : x - Step 2: Convert to fraction form
163,819.80/245,729.70 = 53,011.80/x - Step 3: Cross multiply
163,819.80x = 245,729.70 × 53,011.80 - Step 4: Simplify right side
163,819.80x = 13,026,573,710.46 - Step 5: Solve for x
x = 13,026,573,710.46/163,819.80 - Step 6: Final answer
x = 79,517.70
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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.