Finding the Fourth Proportional to 320,885.28, 479,377.74 and 207,642.96
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Solution
The fourth proportional to 320,885.28, 479,377.74 and 207,642.96 is: 310,202.49
Step by Step Solution
- Step 1: Write the proportion equation
320,885.28 : 479,377.74 = 207,642.96 : x - Step 2: Convert to fraction form
320,885.28/479,377.74 = 207,642.96/x - Step 3: Cross multiply
320,885.28x = 479,377.74 × 207,642.96 - Step 4: Simplify right side
320,885.28x = 99,539,412,891.71 - Step 5: Solve for x
x = 99,539,412,891.71/320,885.28 - Step 6: Final answer
x = 310,202.49
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.