Finding the Fourth Proportional to 354,847.36, 489,672.12 and 201,871.12
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Solution
The fourth proportional to 354,847.36, 489,672.12 and 201,871.12 is: 278,572.34
Step by Step Solution
- Step 1: Write the proportion equation
354,847.36 : 489,672.12 = 201,871.12 : x - Step 2: Convert to fraction form
354,847.36/489,672.12 = 201,871.12/x - Step 3: Cross multiply
354,847.36x = 489,672.12 × 201,871.12 - Step 4: Simplify right side
354,847.36x = 98,850,659,297.17 - Step 5: Solve for x
x = 98,850,659,297.17/354,847.36 - Step 6: Final answer
x = 278,572.34
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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.