Finding the Fourth Proportional to 354,472.68, 489,152.85 and 201,489.60
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Solution
The fourth proportional to 354,472.68, 489,152.85 and 201,489.60 is: 278,044.59
Step by Step Solution
- Step 1: Write the proportion equation
354,472.68 : 489,152.85 = 201,489.60 : x - Step 2: Convert to fraction form
354,472.68/489,152.85 = 201,489.60/x - Step 3: Cross multiply
354,472.68x = 489,152.85 × 201,489.60 - Step 4: Simplify right side
354,472.68x = 98,559,212,085.36 - Step 5: Solve for x
x = 98,559,212,085.36/354,472.68 - Step 6: Final answer
x = 278,044.59
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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.