Finding the Fourth Proportional to 316,983.53, 437,482.12 and 196,163.73
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Solution
The fourth proportional to 316,983.53, 437,482.12 and 196,163.73 is: 270,733.70
Step by Step Solution
- Step 1: Write the proportion equation
316,983.53 : 437,482.12 = 196,163.73 : x - Step 2: Convert to fraction form
316,983.53/437,482.12 = 196,163.73/x - Step 3: Cross multiply
316,983.53x = 437,482.12 × 196,163.73 - Step 4: Simplify right side
316,983.53x = 85,818,124,467.51 - Step 5: Solve for x
x = 85,818,124,467.51/316,983.53 - Step 6: Final answer
x = 270,733.70
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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.