Finding the Fourth Proportional to 644,639.01, 966,967.43 and 171,321.99
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Solution
The fourth proportional to 644,639.01, 966,967.43 and 171,321.99 is: 256,985.35
Step by Step Solution
- Step 1: Write the proportion equation
644,639.01 : 966,967.43 = 171,321.99 : x - Step 2: Convert to fraction form
644,639.01/966,967.43 = 171,321.99/x - Step 3: Cross multiply
644,639.01x = 966,967.43 × 171,321.99 - Step 4: Simplify right side
644,639.01x = 165,662,783,516.18 - Step 5: Solve for x
x = 165,662,783,516.18/644,639.01 - Step 6: Final answer
x = 256,985.35
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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.