Finding the Fourth Proportional to 151,491.28, 209,048.58 and 83,504.74
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Solution
The fourth proportional to 151,491.28, 209,048.58 and 83,504.74 is: 115,231.37
Step by Step Solution
- Step 1: Write the proportion equation
151,491.28 : 209,048.58 = 83,504.74 : x - Step 2: Convert to fraction form
151,491.28/209,048.58 = 83,504.74/x - Step 3: Cross multiply
151,491.28x = 209,048.58 × 83,504.74 - Step 4: Simplify right side
151,491.28x = 17,456,547,634.13 - Step 5: Solve for x
x = 17,456,547,634.13/151,491.28 - Step 6: Final answer
x = 115,231.37
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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.