Finding the Fourth Proportional to 253,421.88, 349,722.19 and 140,251.92
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Solution
The fourth proportional to 253,421.88, 349,722.19 and 140,251.92 is: 193,547.65
Step by Step Solution
- Step 1: Write the proportion equation
253,421.88 : 349,722.19 = 140,251.92 : x - Step 2: Convert to fraction form
253,421.88/349,722.19 = 140,251.92/x - Step 3: Cross multiply
253,421.88x = 349,722.19 × 140,251.92 - Step 4: Simplify right side
253,421.88x = 49,049,208,614.10 - Step 5: Solve for x
x = 49,049,208,614.10/253,421.88 - Step 6: Final answer
x = 193,547.65
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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.