Finding the Fourth Proportional to 187,849.63, 281,331.58 and 145,389.71
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Solution
The fourth proportional to 187,849.63, 281,331.58 and 145,389.71 is: 217,741.80
Step by Step Solution
- Step 1: Write the proportion equation
187,849.63 : 281,331.58 = 145,389.71 : x - Step 2: Convert to fraction form
187,849.63/281,331.58 = 145,389.71/x - Step 3: Cross multiply
187,849.63x = 281,331.58 × 145,389.71 - Step 4: Simplify right side
187,849.63x = 40,902,716,651.26 - Step 5: Solve for x
x = 40,902,716,651.26/187,849.63 - Step 6: Final answer
x = 217,741.80
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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.