Finding the Fourth Proportional to 331,854.88, 497,901.12 and 142,235.68
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Solution
The fourth proportional to 331,854.88, 497,901.12 and 142,235.68 is: 213,404.44
Step by Step Solution
- Step 1: Write the proportion equation
331,854.88 : 497,901.12 = 142,235.68 : x - Step 2: Convert to fraction form
331,854.88/497,901.12 = 142,235.68/x - Step 3: Cross multiply
331,854.88x = 497,901.12 × 142,235.68 - Step 4: Simplify right side
331,854.88x = 70,819,304,375.96 - Step 5: Solve for x
x = 70,819,304,375.96/331,854.88 - Step 6: Final answer
x = 213,404.44
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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.