Finding the Fourth Proportional to 354,462.44, 489,138.97 and 201,479.40
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Solution
The fourth proportional to 354,462.44, 489,138.97 and 201,479.40 is: 278,030.66
Step by Step Solution
- Step 1: Write the proportion equation
354,462.44 : 489,138.97 = 201,479.40 : x - Step 2: Convert to fraction form
354,462.44/489,138.97 = 201,479.40/x - Step 3: Cross multiply
354,462.44x = 489,138.97 × 201,479.40 - Step 4: Simplify right side
354,462.44x = 98,551,426,192.22 - Step 5: Solve for x
x = 98,551,426,192.22/354,462.44 - Step 6: Final answer
x = 278,030.66
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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.