Finding the Fourth Proportional to 153,717.92, 211,271.84 and 135,703.52
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Solution
The fourth proportional to 153,717.92, 211,271.84 and 135,703.52 is: 186,512.62
Step by Step Solution
- Step 1: Write the proportion equation
153,717.92 : 211,271.84 = 135,703.52 : x - Step 2: Convert to fraction form
153,717.92/211,271.84 = 135,703.52/x - Step 3: Cross multiply
153,717.92x = 211,271.84 × 135,703.52 - Step 4: Simplify right side
153,717.92x = 28,670,332,364.88 - Step 5: Solve for x
x = 28,670,332,364.88/153,717.92 - Step 6: Final answer
x = 186,512.62
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.