Finding the Fourth Proportional to 385,763.36, 532,347.80 and 213,680.75
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Solution
The fourth proportional to 385,763.36, 532,347.80 and 213,680.75 is: 294,876.31
Step by Step Solution
- Step 1: Write the proportion equation
385,763.36 : 532,347.80 = 213,680.75 : x - Step 2: Convert to fraction form
385,763.36/532,347.80 = 213,680.75/x - Step 3: Cross multiply
385,763.36x = 532,347.80 × 213,680.75 - Step 4: Simplify right side
385,763.36x = 113,752,473,434.71 - Step 5: Solve for x
x = 113,752,473,434.71/385,763.36 - Step 6: Final answer
x = 294,876.31
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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.