Finding the Fourth Proportional to 312,354.87, 468,725.09 and 122,782.07
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Solution
The fourth proportional to 312,354.87, 468,725.09 and 122,782.07 is: 184,248.88
Step by Step Solution
- Step 1: Write the proportion equation
312,354.87 : 468,725.09 = 122,782.07 : x - Step 2: Convert to fraction form
312,354.87/468,725.09 = 122,782.07/x - Step 3: Cross multiply
312,354.87x = 468,725.09 × 122,782.07 - Step 4: Simplify right side
312,354.87x = 57,551,033,853.60 - Step 5: Solve for x
x = 57,551,033,853.60/312,354.87 - Step 6: Final answer
x = 184,248.88
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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.