Finding the Fourth Proportional to 268,831.44, 403,305.48 and 81,838.08
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Solution
The fourth proportional to 268,831.44, 403,305.48 and 81,838.08 is: 122,774.87
Step by Step Solution
- Step 1: Write the proportion equation
268,831.44 : 403,305.48 = 81,838.08 : x - Step 2: Convert to fraction form
268,831.44/403,305.48 = 81,838.08/x - Step 3: Cross multiply
268,831.44x = 403,305.48 × 81,838.08 - Step 4: Simplify right side
268,831.44x = 33,005,746,136.68 - Step 5: Solve for x
x = 33,005,746,136.68/268,831.44 - Step 6: Final answer
x = 122,774.87
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.