Finding the Fourth Proportional to 288,338.30, 432,599.99 and 138,589.45
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Solution
The fourth proportional to 288,338.30, 432,599.99 and 138,589.45 is: 207,928.65
Step by Step Solution
- Step 1: Write the proportion equation
288,338.30 : 432,599.99 = 138,589.45 : x - Step 2: Convert to fraction form
288,338.30/432,599.99 = 138,589.45/x - Step 3: Cross multiply
288,338.30x = 432,599.99 × 138,589.45 - Step 4: Simplify right side
288,338.30x = 59,953,794,684.11 - Step 5: Solve for x
x = 59,953,794,684.11/288,338.30 - Step 6: Final answer
x = 207,928.65
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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.