Finding the Fourth Proportional to 354,432.14, 489,117.16 and 201,471.32
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Solution
The fourth proportional to 354,432.14, 489,117.16 and 201,471.32 is: 278,030.88
Step by Step Solution
- Step 1: Write the proportion equation
354,432.14 : 489,117.16 = 201,471.32 : x - Step 2: Convert to fraction form
354,432.14/489,117.16 = 201,471.32/x - Step 3: Cross multiply
354,432.14x = 489,117.16 × 201,471.32 - Step 4: Simplify right side
354,432.14x = 98,543,079,859.85 - Step 5: Solve for x
x = 98,543,079,859.85/354,432.14 - Step 6: Final answer
x = 278,030.88
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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.