Finding the Fourth Proportional to 320,215.16, 480,322.13 and 300,728.99
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Solution
The fourth proportional to 320,215.16, 480,322.13 and 300,728.99 is: 451,092.91
Step by Step Solution
- Step 1: Write the proportion equation
320,215.16 : 480,322.13 = 300,728.99 : x - Step 2: Convert to fraction form
320,215.16/480,322.13 = 300,728.99/x - Step 3: Cross multiply
320,215.16x = 480,322.13 × 300,728.99 - Step 4: Simplify right side
320,215.16x = 144,446,789,029.55 - Step 5: Solve for x
x = 144,446,789,029.55/320,215.16 - Step 6: Final answer
x = 451,092.91
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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.