Finding the Fourth Proportional to 320,037.01, 479,720.21 and 149,117.79
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Solution
The fourth proportional to 320,037.01, 479,720.21 and 149,117.79 is: 223,520.45
Step by Step Solution
- Step 1: Write the proportion equation
320,037.01 : 479,720.21 = 149,117.79 : x - Step 2: Convert to fraction form
320,037.01/479,720.21 = 149,117.79/x - Step 3: Cross multiply
320,037.01x = 479,720.21 × 149,117.79 - Step 4: Simplify right side
320,037.01x = 71,534,815,734.59 - Step 5: Solve for x
x = 71,534,815,734.59/320,037.01 - Step 6: Final answer
x = 223,520.45
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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.