Finding the Fourth Proportional to 512,014.75, 768,022.14 and 138,037.75
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Solution
The fourth proportional to 512,014.75, 768,022.14 and 138,037.75 is: 207,056.63
Step by Step Solution
- Step 1: Write the proportion equation
512,014.75 : 768,022.14 = 138,037.75 : x - Step 2: Convert to fraction form
512,014.75/768,022.14 = 138,037.75/x - Step 3: Cross multiply
512,014.75x = 768,022.14 × 138,037.75 - Step 4: Simplify right side
512,014.75x = 106,016,048,155.79 - Step 5: Solve for x
x = 106,016,048,155.79/512,014.75 - Step 6: Final answer
x = 207,056.63
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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.