Finding the Fourth Proportional to 312,628.72, 468,941.50 and 75,972.08
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Solution
The fourth proportional to 312,628.72, 468,941.50 and 75,972.08 is: 113,957.74
Step by Step Solution
- Step 1: Write the proportion equation
312,628.72 : 468,941.50 = 75,972.08 : x - Step 2: Convert to fraction form
312,628.72/468,941.50 = 75,972.08/x - Step 3: Cross multiply
312,628.72x = 468,941.50 × 75,972.08 - Step 4: Simplify right side
312,628.72x = 35,626,461,153.32 - Step 5: Solve for x
x = 35,626,461,153.32/312,628.72 - Step 6: Final answer
x = 113,957.74
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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.