Finding the Fourth Proportional to 351,964.40, 526,909.80 and 331,458.80
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Solution
The fourth proportional to 351,964.40, 526,909.80 and 331,458.80 is: 496,211.80
Step by Step Solution
- Step 1: Write the proportion equation
351,964.40 : 526,909.80 = 331,458.80 : x - Step 2: Convert to fraction form
351,964.40/526,909.80 = 331,458.80/x - Step 3: Cross multiply
351,964.40x = 526,909.80 × 331,458.80 - Step 4: Simplify right side
351,964.40x = 174,648,890,016.24 - Step 5: Solve for x
x = 174,648,890,016.24/351,964.40 - Step 6: Final answer
x = 496,211.80
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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.