Finding the Fourth Proportional to 217,347.93, 299,911.01 and 121,856.49
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Solution
The fourth proportional to 217,347.93, 299,911.01 and 121,856.49 is: 168,145.62
Step by Step Solution
- Step 1: Write the proportion equation
217,347.93 : 299,911.01 = 121,856.49 : x - Step 2: Convert to fraction form
217,347.93/299,911.01 = 121,856.49/x - Step 3: Cross multiply
217,347.93x = 299,911.01 × 121,856.49 - Step 4: Simplify right side
217,347.93x = 36,546,102,381.67 - Step 5: Solve for x
x = 36,546,102,381.67/217,347.93 - Step 6: Final answer
x = 168,145.62
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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.