Finding the Fourth Proportional to 354,823.23, 489,638.95 and 201,847.03
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Solution
The fourth proportional to 354,823.23, 489,638.95 and 201,847.03 is: 278,539.16
Step by Step Solution
- Step 1: Write the proportion equation
354,823.23 : 489,638.95 = 201,847.03 : x - Step 2: Convert to fraction form
354,823.23/489,638.95 = 201,847.03/x - Step 3: Cross multiply
354,823.23x = 489,638.95 × 201,847.03 - Step 4: Simplify right side
354,823.23x = 98,832,166,831.79 - Step 5: Solve for x
x = 98,832,166,831.79/354,823.23 - Step 6: Final answer
x = 278,539.16
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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.