Finding the Fourth Proportional to 253,576.13, 349,945.99 and 140,398.88
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Solution
The fourth proportional to 253,576.13, 349,945.99 and 140,398.88 is: 193,756.50
Step by Step Solution
- Step 1: Write the proportion equation
253,576.13 : 349,945.99 = 140,398.88 : x - Step 2: Convert to fraction form
253,576.13/349,945.99 = 140,398.88/x - Step 3: Cross multiply
253,576.13x = 349,945.99 × 140,398.88 - Step 4: Simplify right side
253,576.13x = 49,132,022,955.76 - Step 5: Solve for x
x = 49,132,022,955.76/253,576.13 - Step 6: Final answer
x = 193,756.50
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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.