Finding the Fourth Proportional to 287,869.34, 397,260.35 and 160,553.14
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Solution
The fourth proportional to 287,869.34, 397,260.35 and 160,553.14 is: 221,563.70
Step by Step Solution
- Step 1: Write the proportion equation
287,869.34 : 397,260.35 = 160,553.14 : x - Step 2: Convert to fraction form
287,869.34/397,260.35 = 160,553.14/x - Step 3: Cross multiply
287,869.34x = 397,260.35 × 160,553.14 - Step 4: Simplify right side
287,869.34x = 63,781,395,396.16 - Step 5: Solve for x
x = 63,781,395,396.16/287,869.34 - Step 6: Final answer
x = 221,563.70
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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.