Finding the Fourth Proportional to 253,417.18, 349,715.84 and 138,695.92
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Solution
The fourth proportional to 253,417.18, 349,715.84 and 138,695.92 is: 191,400.44
Step by Step Solution
- Step 1: Write the proportion equation
253,417.18 : 349,715.84 = 138,695.92 : x - Step 2: Convert to fraction form
253,417.18/349,715.84 = 138,695.92/x - Step 3: Cross multiply
253,417.18x = 349,715.84 × 138,695.92 - Step 4: Simplify right side
253,417.18x = 48,504,160,167.37 - Step 5: Solve for x
x = 48,504,160,167.37/253,417.18 - Step 6: Final answer
x = 191,400.44
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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.