Finding the Fourth Proportional to 288,970.21, 398,859.03 and 168,134.84
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Solution
The fourth proportional to 288,970.21, 398,859.03 and 168,134.84 is: 232,072.70
Step by Step Solution
- Step 1: Write the proportion equation
288,970.21 : 398,859.03 = 168,134.84 : x - Step 2: Convert to fraction form
288,970.21/398,859.03 = 168,134.84/x - Step 3: Cross multiply
288,970.21x = 398,859.03 × 168,134.84 - Step 4: Simplify right side
288,970.21x = 67,062,097,197.31 - Step 5: Solve for x
x = 67,062,097,197.31/288,970.21 - Step 6: Final answer
x = 232,072.70
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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.