Finding the Fourth Proportional to 253,518.07, 349,859.07 and 138,794.79
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Solution
The fourth proportional to 253,518.07, 349,859.07 and 138,794.79 is: 191,539.08
Step by Step Solution
- Step 1: Write the proportion equation
253,518.07 : 349,859.07 = 138,794.79 : x - Step 2: Convert to fraction form
253,518.07/349,859.07 = 138,794.79/x - Step 3: Cross multiply
253,518.07x = 349,859.07 × 138,794.79 - Step 4: Simplify right side
253,518.07x = 48,558,616,868.60 - Step 5: Solve for x
x = 48,558,616,868.60/253,518.07 - Step 6: Final answer
x = 191,539.08
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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.