Finding the Fourth Proportional to 288,484.21, 398,107.20 and 159,419.08
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Solution
The fourth proportional to 288,484.21, 398,107.20 and 159,419.08 is: 219,997.77
Step by Step Solution
- Step 1: Write the proportion equation
288,484.21 : 398,107.20 = 159,419.08 : x - Step 2: Convert to fraction form
288,484.21/398,107.20 = 159,419.08/x - Step 3: Cross multiply
288,484.21x = 398,107.20 × 159,419.08 - Step 4: Simplify right side
288,484.21x = 63,465,883,565.38 - Step 5: Solve for x
x = 63,465,883,565.38/288,484.21 - Step 6: Final answer
x = 219,997.77
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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.