Finding the Fourth Proportional to 381,579.84, 572,369.76 and 132,261.84
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Solution
The fourth proportional to 381,579.84, 572,369.76 and 132,261.84 is: 198,392.76
Step by Step Solution
- Step 1: Write the proportion equation
381,579.84 : 572,369.76 = 132,261.84 : x - Step 2: Convert to fraction form
381,579.84/572,369.76 = 132,261.84/x - Step 3: Cross multiply
381,579.84x = 572,369.76 × 132,261.84 - Step 4: Simplify right side
381,579.84x = 75,702,677,617.96 - Step 5: Solve for x
x = 75,702,677,617.96/381,579.84 - Step 6: Final answer
x = 198,392.76
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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.