Finding the Fourth Proportional to 338,128.68, 466,511.76 and 194,869.14
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Solution
The fourth proportional to 338,128.68, 466,511.76 and 194,869.14 is: 268,858.43
Step by Step Solution
- Step 1: Write the proportion equation
338,128.68 : 466,511.76 = 194,869.14 : x - Step 2: Convert to fraction form
338,128.68/466,511.76 = 194,869.14/x - Step 3: Cross multiply
338,128.68x = 466,511.76 × 194,869.14 - Step 4: Simplify right side
338,128.68x = 90,908,745,471.09 - Step 5: Solve for x
x = 90,908,745,471.09/338,128.68 - Step 6: Final answer
x = 268,858.43
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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.