Finding the Fourth Proportional to 385,831.93, 532,442.28 and 213,749.53
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Solution
The fourth proportional to 385,831.93, 532,442.28 and 213,749.53 is: 294,971.15
Step by Step Solution
- Step 1: Write the proportion equation
385,831.93 : 532,442.28 = 213,749.53 : x - Step 2: Convert to fraction form
385,831.93/532,442.28 = 213,749.53/x - Step 3: Cross multiply
385,831.93x = 532,442.28 × 213,749.53 - Step 4: Simplify right side
385,831.93x = 113,809,287,102.13 - Step 5: Solve for x
x = 113,809,287,102.13/385,831.93 - Step 6: Final answer
x = 294,971.15
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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.