Finding the Fourth Proportional to 194,449.60, 291,706.80 and 76,124.80
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Solution
The fourth proportional to 194,449.60, 291,706.80 and 76,124.80 is: 114,199.88
Step by Step Solution
- Step 1: Write the proportion equation
194,449.60 : 291,706.80 = 76,124.80 : x - Step 2: Convert to fraction form
194,449.60/291,706.80 = 76,124.80/x - Step 3: Cross multiply
194,449.60x = 291,706.80 × 76,124.80 - Step 4: Simplify right side
194,449.60x = 22,206,121,808.64 - Step 5: Solve for x
x = 22,206,121,808.64/194,449.60 - Step 6: Final answer
x = 114,199.88
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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.