Finding the Fourth Proportional to 162,376.20, 243,305.10 and 135,937.80
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Solution
The fourth proportional to 162,376.20, 243,305.10 and 135,937.80 is: 203,689.70
Step by Step Solution
- Step 1: Write the proportion equation
162,376.20 : 243,305.10 = 135,937.80 : x - Step 2: Convert to fraction form
162,376.20/243,305.10 = 135,937.80/x - Step 3: Cross multiply
162,376.20x = 243,305.10 × 135,937.80 - Step 4: Simplify right side
162,376.20x = 33,074,360,022.78 - Step 5: Solve for x
x = 33,074,360,022.78/162,376.20 - Step 6: Final answer
x = 203,689.70
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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.