Finding the Fourth Proportional to 288,209.76, 432,315.91 and 119,729.95
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Solution
The fourth proportional to 288,209.76, 432,315.91 and 119,729.95 is: 179,595.45
Step by Step Solution
- Step 1: Write the proportion equation
288,209.76 : 432,315.91 = 119,729.95 : x - Step 2: Convert to fraction form
288,209.76/432,315.91 = 119,729.95/x - Step 3: Cross multiply
288,209.76x = 432,315.91 × 119,729.95 - Step 4: Simplify right side
288,209.76x = 51,761,160,908.39 - Step 5: Solve for x
x = 51,761,160,908.39/288,209.76 - Step 6: Final answer
x = 179,595.45
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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.