Finding the Fourth Proportional to 387,664.77, 581,497.20 and 121,446.05
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Solution
The fourth proportional to 387,664.77, 581,497.20 and 121,446.05 is: 182,169.09
Step by Step Solution
- Step 1: Write the proportion equation
387,664.77 : 581,497.20 = 121,446.05 : x - Step 2: Convert to fraction form
387,664.77/581,497.20 = 121,446.05/x - Step 3: Cross multiply
387,664.77x = 581,497.20 × 121,446.05 - Step 4: Simplify right side
387,664.77x = 70,620,538,026.06 - Step 5: Solve for x
x = 70,620,538,026.06/387,664.77 - Step 6: Final answer
x = 182,169.09
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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.