Finding the Fourth Proportional to 288,478.91, 398,116.18 and 173,793.65
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Solution
The fourth proportional to 288,478.91, 398,116.18 and 173,793.65 is: 239,844.45
Step by Step Solution
- Step 1: Write the proportion equation
288,478.91 : 398,116.18 = 173,793.65 : x - Step 2: Convert to fraction form
288,478.91/398,116.18 = 173,793.65/x - Step 3: Cross multiply
288,478.91x = 398,116.18 × 173,793.65 - Step 4: Simplify right side
288,478.91x = 69,190,064,172.58 - Step 5: Solve for x
x = 69,190,064,172.58/288,478.91 - Step 6: Final answer
x = 239,844.45
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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.