Finding the Fourth Proportional to 288,862.74, 398,787.30 and 174,161.88
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Solution
The fourth proportional to 288,862.74, 398,787.30 and 174,161.88 is: 240,437.88
Step by Step Solution
- Step 1: Write the proportion equation
288,862.74 : 398,787.30 = 174,161.88 : x - Step 2: Convert to fraction form
288,862.74/398,787.30 = 174,161.88/x - Step 3: Cross multiply
288,862.74x = 398,787.30 × 174,161.88 - Step 4: Simplify right side
288,862.74x = 69,453,545,888.12 - Step 5: Solve for x
x = 69,453,545,888.12/288,862.74 - Step 6: Final answer
x = 240,437.88
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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.