Finding the Fourth Proportional to 354,949.02, 489,831.12 and 193,807.62
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Solution
The fourth proportional to 354,949.02, 489,831.12 and 193,807.62 is: 267,455.32
Step by Step Solution
- Step 1: Write the proportion equation
354,949.02 : 489,831.12 = 193,807.62 : x - Step 2: Convert to fraction form
354,949.02/489,831.12 = 193,807.62/x - Step 3: Cross multiply
354,949.02x = 489,831.12 × 193,807.62 - Step 4: Simplify right side
354,949.02x = 94,933,003,569.13 - Step 5: Solve for x
x = 94,933,003,569.13/354,949.02 - Step 6: Final answer
x = 267,455.32
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1.5x scale
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.