Finding the Fourth Proportional to 253,604.99, 349,970.60 and 140,425.31
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Solution
The fourth proportional to 253,604.99, 349,970.60 and 140,425.31 is: 193,784.55
Step by Step Solution
- Step 1: Write the proportion equation
253,604.99 : 349,970.60 = 140,425.31 : x - Step 2: Convert to fraction form
253,604.99/349,970.60 = 140,425.31/x - Step 3: Cross multiply
253,604.99x = 349,970.60 × 140,425.31 - Step 4: Simplify right side
253,604.99x = 49,144,728,597.10 - Step 5: Solve for x
x = 49,144,728,597.10/253,604.99 - Step 6: Final answer
x = 193,784.55
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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.