Finding the Fourth Proportional to 217,170.58, 299,707.65 and 121,708.03
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Solution
The fourth proportional to 217,170.58, 299,707.65 and 121,708.03 is: 167,963.95
Step by Step Solution
- Step 1: Write the proportion equation
217,170.58 : 299,707.65 = 121,708.03 : x - Step 2: Convert to fraction form
217,170.58/299,707.65 = 121,708.03/x - Step 3: Cross multiply
217,170.58x = 299,707.65 × 121,708.03 - Step 4: Simplify right side
217,170.58x = 36,476,827,657.43 - Step 5: Solve for x
x = 36,476,827,657.43/217,170.58 - Step 6: Final answer
x = 167,963.95
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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.