Finding the Fourth Proportional to 642,936.36, 964,444.64 and 169,622.18
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Solution
The fourth proportional to 642,936.36, 964,444.64 and 169,622.18 is: 254,443.84
Step by Step Solution
- Step 1: Write the proportion equation
642,936.36 : 964,444.64 = 169,622.18 : x - Step 2: Convert to fraction form
642,936.36/964,444.64 = 169,622.18/x - Step 3: Cross multiply
642,936.36x = 964,444.64 × 169,622.18 - Step 4: Simplify right side
642,936.36x = 163,591,196,655.78 - Step 5: Solve for x
x = 163,591,196,655.78/642,936.36 - Step 6: Final answer
x = 254,443.84
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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.