Finding the Fourth Proportional to 427,595.85, 641,134.58 and 214,115.49
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Solution
The fourth proportional to 427,595.85, 641,134.58 and 214,115.49 is: 321,043.44
Step by Step Solution
- Step 1: Write the proportion equation
427,595.85 : 641,134.58 = 214,115.49 : x - Step 2: Convert to fraction form
427,595.85/641,134.58 = 214,115.49/x - Step 3: Cross multiply
427,595.85x = 641,134.58 × 214,115.49 - Step 4: Simplify right side
427,595.85x = 137,276,843,682.07 - Step 5: Solve for x
x = 137,276,843,682.07/427,595.85 - Step 6: Final answer
x = 321,043.44
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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.