Finding the Fourth Proportional to 276,386.68, 381,512.10 and 163,209.88
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Solution
The fourth proportional to 276,386.68, 381,512.10 and 163,209.88 is: 225,287.79
Step by Step Solution
- Step 1: Write the proportion equation
276,386.68 : 381,512.10 = 163,209.88 : x - Step 2: Convert to fraction form
276,386.68/381,512.10 = 163,209.88/x - Step 3: Cross multiply
276,386.68x = 381,512.10 × 163,209.88 - Step 4: Simplify right side
276,386.68x = 62,266,544,059.55 - Step 5: Solve for x
x = 62,266,544,059.55/276,386.68 - Step 6: Final answer
x = 225,287.79
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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.