Finding the Fourth Proportional to 317,037.12, 437,439.36 and 215,076.48
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Solution
The fourth proportional to 317,037.12, 437,439.36 and 215,076.48 is: 296,756.79
Step by Step Solution
- Step 1: Write the proportion equation
317,037.12 : 437,439.36 = 215,076.48 : x - Step 2: Convert to fraction form
317,037.12/437,439.36 = 215,076.48/x - Step 3: Cross multiply
317,037.12x = 437,439.36 × 215,076.48 - Step 4: Simplify right side
317,037.12x = 94,082,917,762.25 - Step 5: Solve for x
x = 94,082,917,762.25/317,037.12 - Step 6: Final answer
x = 296,756.79
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.