Finding the Fourth Proportional to 187,818.10, 281,259.79 and 131,394.08
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Solution
The fourth proportional to 187,818.10, 281,259.79 and 131,394.08 is: 196,764.17
Step by Step Solution
- Step 1: Write the proportion equation
187,818.10 : 281,259.79 = 131,394.08 : x - Step 2: Convert to fraction form
187,818.10/281,259.79 = 131,394.08/x - Step 3: Cross multiply
187,818.10x = 281,259.79 × 131,394.08 - Step 4: Simplify right side
187,818.10x = 36,955,871,722.71 - Step 5: Solve for x
x = 36,955,871,722.71/187,818.10 - Step 6: Final answer
x = 196,764.17
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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.