Finding the Fourth Proportional to 397,851.95, 549,042.69 and 216,569.09
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Solution
The fourth proportional to 397,851.95, 549,042.69 and 216,569.09 is: 298,869.15
Step by Step Solution
- Step 1: Write the proportion equation
397,851.95 : 549,042.69 = 216,569.09 : x - Step 2: Convert to fraction form
397,851.95/549,042.69 = 216,569.09/x - Step 3: Cross multiply
397,851.95x = 549,042.69 × 216,569.09 - Step 4: Simplify right side
397,851.95x = 118,905,672,999.24 - Step 5: Solve for x
x = 118,905,672,999.24/397,851.95 - Step 6: Final answer
x = 298,869.15
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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.