Finding the Fourth Proportional to 153,674.52, 211,951.59 and 136,464.99
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Solution
The fourth proportional to 153,674.52, 211,951.59 and 136,464.99 is: 188,215.79
Step by Step Solution
- Step 1: Write the proportion equation
153,674.52 : 211,951.59 = 136,464.99 : x - Step 2: Convert to fraction form
153,674.52/211,951.59 = 136,464.99/x - Step 3: Cross multiply
153,674.52x = 211,951.59 × 136,464.99 - Step 4: Simplify right side
153,674.52x = 28,923,971,609.83 - Step 5: Solve for x
x = 28,923,971,609.83/153,674.52 - Step 6: Final answer
x = 188,215.79
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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.