Finding the Fourth Proportional to 354,461.44, 489,137.59 and 201,478.40
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Solution
The fourth proportional to 354,461.44, 489,137.59 and 201,478.40 is: 278,029.28
Step by Step Solution
- Step 1: Write the proportion equation
354,461.44 : 489,137.59 = 201,478.40 : x - Step 2: Convert to fraction form
354,461.44/489,137.59 = 201,478.40/x - Step 3: Cross multiply
354,461.44x = 489,137.59 × 201,478.40 - Step 4: Simplify right side
354,461.44x = 98,550,658,208.02 - Step 5: Solve for x
x = 98,550,658,208.02/354,461.44 - Step 6: Final answer
x = 278,029.28
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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.