Finding the Fourth Proportional to 402,218.70, 603,409.05 and 117,908.70
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Solution
The fourth proportional to 402,218.70, 603,409.05 and 117,908.70 is: 176,886.79
Step by Step Solution
- Step 1: Write the proportion equation
402,218.70 : 603,409.05 = 117,908.70 : x - Step 2: Convert to fraction form
402,218.70/603,409.05 = 117,908.70/x - Step 3: Cross multiply
402,218.70x = 603,409.05 × 117,908.70 - Step 4: Simplify right side
402,218.70x = 71,147,176,653.74 - Step 5: Solve for x
x = 71,147,176,653.74/402,218.70 - Step 6: Final answer
x = 176,886.79
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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.