Finding the Fourth Proportional to 141,811.20, 212,457.60 and 115,372.80
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Solution
The fourth proportional to 141,811.20, 212,457.60 and 115,372.80 is: 172,848.32
Step by Step Solution
- Step 1: Write the proportion equation
141,811.20 : 212,457.60 = 115,372.80 : x - Step 2: Convert to fraction form
141,811.20/212,457.60 = 115,372.80/x - Step 3: Cross multiply
141,811.20x = 212,457.60 × 115,372.80 - Step 4: Simplify right side
141,811.20x = 24,511,828,193.28 - Step 5: Solve for x
x = 24,511,828,193.28/141,811.20 - Step 6: Final answer
x = 172,848.32
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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.