Finding the Fourth Proportional to 331,728.18, 497,297.58 and 129,277.44
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Solution
The fourth proportional to 331,728.18, 497,297.58 and 129,277.44 is: 193,801.32
Step by Step Solution
- Step 1: Write the proportion equation
331,728.18 : 497,297.58 = 129,277.44 : x - Step 2: Convert to fraction form
331,728.18/497,297.58 = 129,277.44/x - Step 3: Cross multiply
331,728.18x = 497,297.58 × 129,277.44 - Step 4: Simplify right side
331,728.18x = 64,289,358,060.60 - Step 5: Solve for x
x = 64,289,358,060.60/331,728.18 - Step 6: Final answer
x = 193,801.32
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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.