Finding the Fourth Proportional to 209,470.55, 313,956.14 and 145,946.70
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Solution
The fourth proportional to 209,470.55, 313,956.14 and 145,946.70 is: 218,746.09
Step by Step Solution
- Step 1: Write the proportion equation
209,470.55 : 313,956.14 = 145,946.70 : x - Step 2: Convert to fraction form
209,470.55/313,956.14 = 145,946.70/x - Step 3: Cross multiply
209,470.55x = 313,956.14 × 145,946.70 - Step 4: Simplify right side
209,470.55x = 45,820,863,346.72 - Step 5: Solve for x
x = 45,820,863,346.72/209,470.55 - Step 6: Final answer
x = 218,746.09
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.