Finding the Fourth Proportional to 487,524.84, 731,378.82 and 221,304.06
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Solution
The fourth proportional to 487,524.84, 731,378.82 and 221,304.06 is: 331,997.65
Step by Step Solution
- Step 1: Write the proportion equation
487,524.84 : 731,378.82 = 221,304.06 : x - Step 2: Convert to fraction form
487,524.84/731,378.82 = 221,304.06/x - Step 3: Cross multiply
487,524.84x = 731,378.82 × 221,304.06 - Step 4: Simplify right side
487,524.84x = 161,857,102,264.01 - Step 5: Solve for x
x = 161,857,102,264.01/487,524.84 - Step 6: Final answer
x = 331,997.65
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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.