Finding the Fourth Proportional to 354,358.79, 489,056.64 and 201,419.99
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Solution
The fourth proportional to 354,358.79, 489,056.64 and 201,419.99 is: 277,983.18
Step by Step Solution
- Step 1: Write the proportion equation
354,358.79 : 489,056.64 = 201,419.99 : x - Step 2: Convert to fraction form
354,358.79/489,056.64 = 201,419.99/x - Step 3: Cross multiply
354,358.79x = 489,056.64 × 201,419.99 - Step 4: Simplify right side
354,358.79x = 98,505,782,531.13 - Step 5: Solve for x
x = 98,505,782,531.13/354,358.79 - Step 6: Final answer
x = 277,983.18
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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.