Finding the Fourth Proportional to 287,889.84, 397,279.68 and 160,562.88
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Solution
The fourth proportional to 287,889.84, 397,279.68 and 160,562.88 is: 221,572.15
Step by Step Solution
- Step 1: Write the proportion equation
287,889.84 : 397,279.68 = 160,562.88 : x - Step 2: Convert to fraction form
287,889.84/397,279.68 = 160,562.88/x - Step 3: Cross multiply
287,889.84x = 397,279.68 × 160,562.88 - Step 4: Simplify right side
287,889.84x = 63,788,369,586.28 - Step 5: Solve for x
x = 63,788,369,586.28/287,889.84 - Step 6: Final answer
x = 221,572.15
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.