Finding the Fourth Proportional to 201,992.85, 278,929.53 and 125,642.79
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Solution
The fourth proportional to 201,992.85, 278,929.53 and 125,642.79 is: 173,498.64
Step by Step Solution
- Step 1: Write the proportion equation
201,992.85 : 278,929.53 = 125,642.79 : x - Step 2: Convert to fraction form
201,992.85/278,929.53 = 125,642.79/x - Step 3: Cross multiply
201,992.85x = 278,929.53 × 125,642.79 - Step 4: Simplify right side
201,992.85x = 35,045,484,362.59 - Step 5: Solve for x
x = 35,045,484,362.59/201,992.85 - Step 6: Final answer
x = 173,498.64
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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.