Finding the Fourth Proportional to 143,295.80, 214,943.70 and 129,517.70
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Solution
The fourth proportional to 143,295.80, 214,943.70 and 129,517.70 is: 194,276.55
Step by Step Solution
- Step 1: Write the proportion equation
143,295.80 : 214,943.70 = 129,517.70 : x - Step 2: Convert to fraction form
143,295.80/214,943.70 = 129,517.70/x - Step 3: Cross multiply
143,295.80x = 214,943.70 × 129,517.70 - Step 4: Simplify right side
143,295.80x = 27,839,013,653.49 - Step 5: Solve for x
x = 27,839,013,653.49/143,295.80 - Step 6: Final answer
x = 194,276.55
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1.5x scale
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.