Finding the Fourth Proportional to 135,279.76, 202,678.88 and 115,356.20
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Solution
The fourth proportional to 135,279.76, 202,678.88 and 115,356.20 is: 172,829.00
Step by Step Solution
- Step 1: Write the proportion equation
135,279.76 : 202,678.88 = 115,356.20 : x - Step 2: Convert to fraction form
135,279.76/202,678.88 = 115,356.20/x - Step 3: Cross multiply
135,279.76x = 202,678.88 × 115,356.20 - Step 4: Simplify right side
135,279.76x = 23,380,265,417.06 - Step 5: Solve for x
x = 23,380,265,417.06/135,279.76 - Step 6: Final answer
x = 172,829.00
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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.