Finding the Fourth Proportional to 207,350.28, 285,995.99 and 138,404.99
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Solution
The fourth proportional to 207,350.28, 285,995.99 and 138,404.99 is: 190,900.49
Step by Step Solution
- Step 1: Write the proportion equation
207,350.28 : 285,995.99 = 138,404.99 : x - Step 2: Convert to fraction form
207,350.28/285,995.99 = 138,404.99/x - Step 3: Cross multiply
207,350.28x = 285,995.99 × 138,404.99 - Step 4: Simplify right side
207,350.28x = 39,583,271,052.02 - Step 5: Solve for x
x = 39,583,271,052.02/207,350.28 - Step 6: Final answer
x = 190,900.49
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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.