Finding the Fourth Proportional to 265,749.84, 398,730.96 and 107,990.64
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Solution
The fourth proportional to 265,749.84, 398,730.96 and 107,990.64 is: 162,029.12
Step by Step Solution
- Step 1: Write the proportion equation
265,749.84 : 398,730.96 = 107,990.64 : x - Step 2: Convert to fraction form
265,749.84/398,730.96 = 107,990.64/x - Step 3: Cross multiply
265,749.84x = 398,730.96 × 107,990.64 - Step 4: Simplify right side
265,749.84x = 43,059,211,558.21 - Step 5: Solve for x
x = 43,059,211,558.21/265,749.84 - Step 6: Final answer
x = 162,029.12
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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.