Finding the Fourth Proportional to 154,839.80, 232,259.70 and 84,855.80
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Solution
The fourth proportional to 154,839.80, 232,259.70 and 84,855.80 is: 127,283.70
Step by Step Solution
- Step 1: Write the proportion equation
154,839.80 : 232,259.70 = 84,855.80 : x - Step 2: Convert to fraction form
154,839.80/232,259.70 = 84,855.80/x - Step 3: Cross multiply
154,839.80x = 232,259.70 × 84,855.80 - Step 4: Simplify right side
154,839.80x = 19,708,582,651.26 - Step 5: Solve for x
x = 19,708,582,651.26/154,839.80 - Step 6: Final answer
x = 127,283.70
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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.