Finding the Fourth Proportional to 288,901.24, 398,721.30 and 161,603.24
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Solution
The fourth proportional to 288,901.24, 398,721.30 and 161,603.24 is: 223,033.50
Step by Step Solution
- Step 1: Write the proportion equation
288,901.24 : 398,721.30 = 161,603.24 : x - Step 2: Convert to fraction form
288,901.24/398,721.30 = 161,603.24/x - Step 3: Cross multiply
288,901.24x = 398,721.30 × 161,603.24 - Step 4: Simplify right side
288,901.24x = 64,434,653,937.01 - Step 5: Solve for x
x = 64,434,653,937.01/288,901.24 - Step 6: Final answer
x = 223,033.50
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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.