Finding the Fourth Proportional to 218,731.14, 301,850.28 and 123,239.70
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Solution
The fourth proportional to 218,731.14, 301,850.28 and 123,239.70 is: 170,071.52
Step by Step Solution
- Step 1: Write the proportion equation
218,731.14 : 301,850.28 = 123,239.70 : x - Step 2: Convert to fraction form
218,731.14/301,850.28 = 123,239.70/x - Step 3: Cross multiply
218,731.14x = 301,850.28 × 123,239.70 - Step 4: Simplify right side
218,731.14x = 37,199,937,952.12 - Step 5: Solve for x
x = 37,199,937,952.12/218,731.14 - Step 6: Final answer
x = 170,071.52
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.