Finding the Fourth Proportional to 288,085.70, 431,998.95 and 110,533.70
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Solution
The fourth proportional to 288,085.70, 431,998.95 and 110,533.70 is: 165,750.82
Step by Step Solution
- Step 1: Write the proportion equation
288,085.70 : 431,998.95 = 110,533.70 : x - Step 2: Convert to fraction form
288,085.70/431,998.95 = 110,533.70/x - Step 3: Cross multiply
288,085.70x = 431,998.95 × 110,533.70 - Step 4: Simplify right side
288,085.70x = 47,750,442,339.62 - Step 5: Solve for x
x = 47,750,442,339.62/288,085.70 - Step 6: Final answer
x = 165,750.82
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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.