Finding the Fourth Proportional to 221,834.36, 306,130.74 and 121,232.36
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Solution
The fourth proportional to 221,834.36, 306,130.74 and 121,232.36 is: 167,300.29
Step by Step Solution
- Step 1: Write the proportion equation
221,834.36 : 306,130.74 = 121,232.36 : x - Step 2: Convert to fraction form
221,834.36/306,130.74 = 121,232.36/x - Step 3: Cross multiply
221,834.36x = 306,130.74 × 121,232.36 - Step 4: Simplify right side
221,834.36x = 37,112,952,078.75 - Step 5: Solve for x
x = 37,112,952,078.75/221,834.36 - Step 6: Final answer
x = 167,300.29
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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.