Finding the Fourth Proportional to 217,289.00, 299,872.65 and 121,795.70
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Solution
The fourth proportional to 217,289.00, 299,872.65 and 121,795.70 is: 168,085.82
Step by Step Solution
- Step 1: Write the proportion equation
217,289.00 : 299,872.65 = 121,795.70 : x - Step 2: Convert to fraction form
217,289.00/299,872.65 = 121,795.70/x - Step 3: Cross multiply
217,289.00x = 299,872.65 × 121,795.70 - Step 4: Simplify right side
217,289.00x = 36,523,197,818.24 - Step 5: Solve for x
x = 36,523,197,818.24/217,289.00 - Step 6: Final answer
x = 168,085.82
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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.