Finding the Fourth Proportional to 268,673.38, 370,772.36 and 153,949.75
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Solution
The fourth proportional to 268,673.38, 370,772.36 and 153,949.75 is: 212,452.43
Step by Step Solution
- Step 1: Write the proportion equation
268,673.38 : 370,772.36 = 153,949.75 : x - Step 2: Convert to fraction form
268,673.38/370,772.36 = 153,949.75/x - Step 3: Cross multiply
268,673.38x = 370,772.36 × 153,949.75 - Step 4: Simplify right side
268,673.38x = 57,080,312,128.91 - Step 5: Solve for x
x = 57,080,312,128.91/268,673.38 - Step 6: Final answer
x = 212,452.43
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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.