Finding the Fourth Proportional to 319,698.24, 440,573.12 and 228,896.48
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Solution
The fourth proportional to 319,698.24, 440,573.12 and 228,896.48 is: 315,440.08
Step by Step Solution
- Step 1: Write the proportion equation
319,698.24 : 440,573.12 = 228,896.48 : x - Step 2: Convert to fraction form
319,698.24/440,573.12 = 228,896.48/x - Step 3: Cross multiply
319,698.24x = 440,573.12 × 228,896.48 - Step 4: Simplify right side
319,698.24x = 100,845,638,453.47 - Step 5: Solve for x
x = 100,845,638,453.47/319,698.24 - Step 6: Final answer
x = 315,440.08
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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.