Finding the Fourth Proportional to 328,163.20, 492,244.80 and 141,539.20
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Solution
The fourth proportional to 328,163.20, 492,244.80 and 141,539.20 is: 212,308.80
Step by Step Solution
- Step 1: Write the proportion equation
328,163.20 : 492,244.80 = 141,539.20 : x - Step 2: Convert to fraction form
328,163.20/492,244.80 = 141,539.20/x - Step 3: Cross multiply
328,163.20x = 492,244.80 × 141,539.20 - Step 4: Simplify right side
328,163.20x = 69,671,935,196.16 - Step 5: Solve for x
x = 69,671,935,196.16/328,163.20 - Step 6: Final answer
x = 212,308.80
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1.5x scale
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.