Finding the Fourth Proportional to 312,850.36, 469,293.80 and 120,725.80
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Solution
The fourth proportional to 312,850.36, 469,293.80 and 120,725.80 is: 181,095.75
Step by Step Solution
- Step 1: Write the proportion equation
312,850.36 : 469,293.80 = 120,725.80 : x - Step 2: Convert to fraction form
312,850.36/469,293.80 = 120,725.80/x - Step 3: Cross multiply
312,850.36x = 469,293.80 × 120,725.80 - Step 4: Simplify right side
312,850.36x = 56,655,869,440.04 - Step 5: Solve for x
x = 56,655,869,440.04/312,850.36 - Step 6: Final answer
x = 181,095.75
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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.