Finding the Fourth Proportional to 381,869.36, 572,877.79 and 145,193.64
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Solution
The fourth proportional to 381,869.36, 572,877.79 and 145,193.64 is: 217,818.50
Step by Step Solution
- Step 1: Write the proportion equation
381,869.36 : 572,877.79 = 145,193.64 : x - Step 2: Convert to fraction form
381,869.36/572,877.79 = 145,193.64/x - Step 3: Cross multiply
381,869.36x = 572,877.79 × 145,193.64 - Step 4: Simplify right side
381,869.36x = 83,178,211,605.26 - Step 5: Solve for x
x = 83,178,211,605.26/381,869.36 - Step 6: Final answer
x = 217,818.50
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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.