Finding the Fourth Proportional to 281,831.14, 388,926.98 and 154,507.63
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Solution
The fourth proportional to 281,831.14, 388,926.98 and 154,507.63 is: 213,220.53
Step by Step Solution
- Step 1: Write the proportion equation
281,831.14 : 388,926.98 = 154,507.63 : x - Step 2: Convert to fraction form
281,831.14/388,926.98 = 154,507.63/x - Step 3: Cross multiply
281,831.14x = 388,926.98 × 154,507.63 - Step 4: Simplify right side
281,831.14x = 60,092,185,150.32 - Step 5: Solve for x
x = 60,092,185,150.32/281,831.14 - Step 6: Final answer
x = 213,220.53
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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.