Finding the Fourth Proportional to 163,510.20, 245,265.30 and 121,519.80
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Solution
The fourth proportional to 163,510.20, 245,265.30 and 121,519.80 is: 182,279.70
Step by Step Solution
- Step 1: Write the proportion equation
163,510.20 : 245,265.30 = 121,519.80 : x - Step 2: Convert to fraction form
163,510.20/245,265.30 = 121,519.80/x - Step 3: Cross multiply
163,510.20x = 245,265.30 × 121,519.80 - Step 4: Simplify right side
163,510.20x = 29,804,590,202.94 - Step 5: Solve for x
x = 29,804,590,202.94/163,510.20 - Step 6: Final answer
x = 182,279.70
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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.