Finding the Fourth Proportional to 245,444.43, 368,171.21 and 76,960.99
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Solution
The fourth proportional to 245,444.43, 368,171.21 and 76,960.99 is: 115,442.91
Step by Step Solution
- Step 1: Write the proportion equation
245,444.43 : 368,171.21 = 76,960.99 : x - Step 2: Convert to fraction form
245,444.43/368,171.21 = 76,960.99/x - Step 3: Cross multiply
245,444.43x = 368,171.21 × 76,960.99 - Step 4: Simplify right side
245,444.43x = 28,334,819,505.86 - Step 5: Solve for x
x = 28,334,819,505.86/245,444.43 - Step 6: Final answer
x = 115,442.91
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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.