Finding the Fourth Proportional to 355,040.96, 489,959.84 and 202,071.64
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Solution
The fourth proportional to 355,040.96, 489,959.84 and 202,071.64 is: 278,860.75
Step by Step Solution
- Step 1: Write the proportion equation
355,040.96 : 489,959.84 = 202,071.64 : x - Step 2: Convert to fraction form
355,040.96/489,959.84 = 202,071.64/x - Step 3: Cross multiply
355,040.96x = 489,959.84 × 202,071.64 - Step 4: Simplify right side
355,040.96x = 99,006,988,402.94 - Step 5: Solve for x
x = 99,006,988,402.94/355,040.96 - Step 6: Final answer
x = 278,860.75
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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.