Finding the Fourth Proportional to 253,955.16, 381,011.70 and 104,207.62
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Solution
The fourth proportional to 253,955.16, 381,011.70 and 104,207.62 is: 156,343.83
Step by Step Solution
- Step 1: Write the proportion equation
253,955.16 : 381,011.70 = 104,207.62 : x - Step 2: Convert to fraction form
253,955.16/381,011.70 = 104,207.62/x - Step 3: Cross multiply
253,955.16x = 381,011.70 × 104,207.62 - Step 4: Simplify right side
253,955.16x = 39,704,322,449.15 - Step 5: Solve for x
x = 39,704,322,449.15/253,955.16 - Step 6: Final answer
x = 156,343.83
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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.