Finding the Fourth Proportional to 229,965.13, 317,356.73 and 129,363.13
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Solution
The fourth proportional to 229,965.13, 317,356.73 and 129,363.13 is: 178,523.85
Step by Step Solution
- Step 1: Write the proportion equation
229,965.13 : 317,356.73 = 129,363.13 : x - Step 2: Convert to fraction form
229,965.13/317,356.73 = 129,363.13/x - Step 3: Cross multiply
229,965.13x = 317,356.73 × 129,363.13 - Step 4: Simplify right side
229,965.13x = 41,054,259,919.36 - Step 5: Solve for x
x = 41,054,259,919.36/229,965.13 - Step 6: Final answer
x = 178,523.85
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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.