Finding the Fourth Proportional to 271,916.68, 408,124.04 and 138,890.20
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Solution
The fourth proportional to 271,916.68, 408,124.04 and 138,890.20 is: 208,462.49
Step by Step Solution
- Step 1: Write the proportion equation
271,916.68 : 408,124.04 = 138,890.20 : x - Step 2: Convert to fraction form
271,916.68/408,124.04 = 138,890.20/x - Step 3: Cross multiply
271,916.68x = 408,124.04 × 138,890.20 - Step 4: Simplify right side
271,916.68x = 56,684,429,540.41 - Step 5: Solve for x
x = 56,684,429,540.41/271,916.68 - Step 6: Final answer
x = 208,462.49
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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.