Finding the Fourth Proportional to 265,743.36, 398,430.72 and 141,171.84
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Solution
The fourth proportional to 265,743.36, 398,430.72 and 141,171.84 is: 211,659.84
Step by Step Solution
- Step 1: Write the proportion equation
265,743.36 : 398,430.72 = 141,171.84 : x - Step 2: Convert to fraction form
265,743.36/398,430.72 = 141,171.84/x - Step 3: Cross multiply
265,743.36x = 398,430.72 × 141,171.84 - Step 4: Simplify right side
265,743.36x = 56,247,197,854.92 - Step 5: Solve for x
x = 56,247,197,854.92/265,743.36 - Step 6: Final answer
x = 211,659.84
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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.