Finding the Fourth Proportional to 305,472.07, 421,991.19 and 244,139.74
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Solution
The fourth proportional to 305,472.07, 421,991.19 and 244,139.74 is: 337,264.28
Step by Step Solution
- Step 1: Write the proportion equation
305,472.07 : 421,991.19 = 244,139.74 : x - Step 2: Convert to fraction form
305,472.07/421,991.19 = 244,139.74/x - Step 3: Cross multiply
305,472.07x = 421,991.19 × 244,139.74 - Step 4: Simplify right side
305,472.07x = 103,024,817,823.02 - Step 5: Solve for x
x = 103,024,817,823.02/305,472.07 - Step 6: Final answer
x = 337,264.28
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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.