Finding the Fourth Proportional to 187,416.80, 281,125.20 and 124,431.20
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Solution
The fourth proportional to 187,416.80, 281,125.20 and 124,431.20 is: 186,646.80
Step by Step Solution
- Step 1: Write the proportion equation
187,416.80 : 281,125.20 = 124,431.20 : x - Step 2: Convert to fraction form
187,416.80/281,125.20 = 124,431.20/x - Step 3: Cross multiply
187,416.80x = 281,125.20 × 124,431.20 - Step 4: Simplify right side
187,416.80x = 34,980,745,986.24 - Step 5: Solve for x
x = 34,980,745,986.24/187,416.80 - Step 6: Final answer
x = 186,646.80
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1.5x scale
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.