Finding the Fourth Proportional to 312,470.23, 468,729.64 and 102,129.43
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Solution
The fourth proportional to 312,470.23, 468,729.64 and 102,129.43 is: 153,202.09
Step by Step Solution
- Step 1: Write the proportion equation
312,470.23 : 468,729.64 = 102,129.43 : x - Step 2: Convert to fraction form
312,470.23/468,729.64 = 102,129.43/x - Step 3: Cross multiply
312,470.23x = 468,729.64 × 102,129.43 - Step 4: Simplify right side
312,470.23x = 47,871,090,957.31 - Step 5: Solve for x
x = 47,871,090,957.31/312,470.23 - Step 6: Final answer
x = 153,202.09
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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.