Finding the Fourth Proportional to 397,438.86, 596,031.84 and 131,149.74
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Solution
The fourth proportional to 397,438.86, 596,031.84 and 131,149.74 is: 196,682.88
Step by Step Solution
- Step 1: Write the proportion equation
397,438.86 : 596,031.84 = 131,149.74 : x - Step 2: Convert to fraction form
397,438.86/596,031.84 = 131,149.74/x - Step 3: Cross multiply
397,438.86x = 596,031.84 × 131,149.74 - Step 4: Simplify right side
397,438.86x = 78,169,420,847.72 - Step 5: Solve for x
x = 78,169,420,847.72/397,438.86 - Step 6: Final answer
x = 196,682.88
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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.