Finding the Fourth Proportional to 217,079.58, 299,581.11 and 121,580.70
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Solution
The fourth proportional to 217,079.58, 299,581.11 and 121,580.70 is: 167,787.69
Step by Step Solution
- Step 1: Write the proportion equation
217,079.58 : 299,581.11 = 121,580.70 : x - Step 2: Convert to fraction form
217,079.58/299,581.11 = 121,580.70/x - Step 3: Cross multiply
217,079.58x = 299,581.11 × 121,580.70 - Step 4: Simplify right side
217,079.58x = 36,423,281,060.58 - Step 5: Solve for x
x = 36,423,281,060.58/217,079.58 - Step 6: Final answer
x = 167,787.69
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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.