Finding the Fourth Proportional to 354,976.90, 489,869.93 and 193,831.95
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Solution
The fourth proportional to 354,976.90, 489,869.93 and 193,831.95 is: 267,489.08
Step by Step Solution
- Step 1: Write the proportion equation
354,976.90 : 489,869.93 = 193,831.95 : x - Step 2: Convert to fraction form
354,976.90/489,869.93 = 193,831.95/x - Step 3: Cross multiply
354,976.90x = 489,869.93 × 193,831.95 - Step 4: Simplify right side
354,976.90x = 94,952,443,778.26 - Step 5: Solve for x
x = 94,952,443,778.26/354,976.90 - Step 6: Final answer
x = 267,489.08
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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.