Finding the Fourth Proportional to 150,554.68, 207,765.45 and 83,486.68
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Solution
The fourth proportional to 150,554.68, 207,765.45 and 83,486.68 is: 115,211.61
Step by Step Solution
- Step 1: Write the proportion equation
150,554.68 : 207,765.45 = 83,486.68 : x - Step 2: Convert to fraction form
150,554.68/207,765.45 = 83,486.68/x - Step 3: Cross multiply
150,554.68x = 207,765.45 × 83,486.68 - Step 4: Simplify right side
150,554.68x = 17,345,647,119.79 - Step 5: Solve for x
x = 17,345,647,119.79/150,554.68 - Step 6: Final answer
x = 115,211.61
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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.