Finding the Fourth Proportional to 217,391.96, 300,000.84 and 121,898.36
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Solution
The fourth proportional to 217,391.96, 300,000.84 and 121,898.36 is: 168,219.70
Step by Step Solution
- Step 1: Write the proportion equation
217,391.96 : 300,000.84 = 121,898.36 : x - Step 2: Convert to fraction form
217,391.96/300,000.84 = 121,898.36/x - Step 3: Cross multiply
217,391.96x = 300,000.84 × 121,898.36 - Step 4: Simplify right side
217,391.96x = 36,569,610,394.62 - Step 5: Solve for x
x = 36,569,610,394.62/217,391.96 - Step 6: Final answer
x = 168,219.70
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1.5x scale
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.