Finding the Fourth Proportional to 397,615.31, 549,040.21 and 368,766.95
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Solution
The fourth proportional to 397,615.31, 549,040.21 and 368,766.95 is: 509,205.45
Step by Step Solution
- Step 1: Write the proportion equation
397,615.31 : 549,040.21 = 368,766.95 : x - Step 2: Convert to fraction form
397,615.31/549,040.21 = 368,766.95/x - Step 3: Cross multiply
397,615.31x = 549,040.21 × 368,766.95 - Step 4: Simplify right side
397,615.31x = 202,467,883,669.06 - Step 5: Solve for x
x = 202,467,883,669.06/397,615.31 - Step 6: Final answer
x = 509,205.45
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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.