Finding the Fourth Proportional to 330,653.99, 455,874.21 and 214,160.19
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Solution
The fourth proportional to 330,653.99, 455,874.21 and 214,160.19 is: 295,263.67
Step by Step Solution
- Step 1: Write the proportion equation
330,653.99 : 455,874.21 = 214,160.19 : x - Step 2: Convert to fraction form
330,653.99/455,874.21 = 214,160.19/x - Step 3: Cross multiply
330,653.99x = 455,874.21 × 214,160.19 - Step 4: Simplify right side
330,653.99x = 97,630,109,942.33 - Step 5: Solve for x
x = 97,630,109,942.33/330,653.99 - Step 6: Final answer
x = 295,263.67
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.