Finding the Fourth Proportional to 393,336.88, 542,803.68 and 223,603.68
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Solution
The fourth proportional to 393,336.88, 542,803.68 and 223,603.68 is: 308,572.39
Step by Step Solution
- Step 1: Write the proportion equation
393,336.88 : 542,803.68 = 223,603.68 : x - Step 2: Convert to fraction form
393,336.88/542,803.68 = 223,603.68/x - Step 3: Cross multiply
393,336.88x = 542,803.68 × 223,603.68 - Step 4: Simplify right side
393,336.88x = 121,372,900,365.54 - Step 5: Solve for x
x = 121,372,900,365.54/393,336.88 - Step 6: Final answer
x = 308,572.39
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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.