Finding the Fourth Proportional to 189,398.84, 261,415.13 and 108,873.08
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Solution
The fourth proportional to 189,398.84, 261,415.13 and 108,873.08 is: 150,270.56
Step by Step Solution
- Step 1: Write the proportion equation
189,398.84 : 261,415.13 = 108,873.08 : x - Step 2: Convert to fraction form
189,398.84/261,415.13 = 108,873.08/x - Step 3: Cross multiply
189,398.84x = 261,415.13 × 108,873.08 - Step 4: Simplify right side
189,398.84x = 28,461,068,510.26 - Step 5: Solve for x
x = 28,461,068,510.26/189,398.84 - Step 6: Final answer
x = 150,270.56
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.