Finding the Fourth Proportional to 287,877.33, 432,190.17 and 221,364.18
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Solution
The fourth proportional to 287,877.33, 432,190.17 and 221,364.18 is: 332,333.99
Step by Step Solution
- Step 1: Write the proportion equation
287,877.33 : 432,190.17 = 221,364.18 : x - Step 2: Convert to fraction form
287,877.33/432,190.17 = 221,364.18/x - Step 3: Cross multiply
287,877.33x = 432,190.17 × 221,364.18 - Step 4: Simplify right side
287,877.33x = 95,671,422,586.11 - Step 5: Solve for x
x = 95,671,422,586.11/287,877.33 - Step 6: Final answer
x = 332,333.99
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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.