Finding the Fourth Proportional to 288,721.98, 433,157.69 and 89,037.95
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Solution
The fourth proportional to 288,721.98, 433,157.69 and 89,037.95 is: 133,579.96
Step by Step Solution
- Step 1: Write the proportion equation
288,721.98 : 433,157.69 = 89,037.95 : x - Step 2: Convert to fraction form
288,721.98/433,157.69 = 89,037.95/x - Step 3: Cross multiply
288,721.98x = 433,157.69 × 89,037.95 - Step 4: Simplify right side
288,721.98x = 38,567,470,801.14 - Step 5: Solve for x
x = 38,567,470,801.14/288,721.98 - Step 6: Final answer
x = 133,579.96
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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.