Finding the Fourth Proportional to 288,291.24, 432,438.40 and 189,079.70
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Solution
The fourth proportional to 288,291.24, 432,438.40 and 189,079.70 is: 283,620.56
Step by Step Solution
- Step 1: Write the proportion equation
288,291.24 : 432,438.40 = 189,079.70 : x - Step 2: Convert to fraction form
288,291.24/432,438.40 = 189,079.70/x - Step 3: Cross multiply
288,291.24x = 432,438.40 × 189,079.70 - Step 4: Simplify right side
288,291.24x = 81,765,322,940.48 - Step 5: Solve for x
x = 81,765,322,940.48/288,291.24 - Step 6: Final answer
x = 283,620.56
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.