Finding the Fourth Proportional to 347,814.99, 479,846.49 and 216,915.63
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Solution
The fourth proportional to 347,814.99, 479,846.49 and 216,915.63 is: 299,257.38
Step by Step Solution
- Step 1: Write the proportion equation
347,814.99 : 479,846.49 = 216,915.63 : x - Step 2: Convert to fraction form
347,814.99/479,846.49 = 216,915.63/x - Step 3: Cross multiply
347,814.99x = 479,846.49 × 216,915.63 - Step 4: Simplify right side
347,814.99x = 104,086,203,681.64 - Step 5: Solve for x
x = 104,086,203,681.64/347,814.99 - Step 6: Final answer
x = 299,257.38
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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.