Finding the Fourth Proportional to 351,689.52, 527,534.94 and 85,450.26
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Solution
The fourth proportional to 351,689.52, 527,534.94 and 85,450.26 is: 128,175.55
Step by Step Solution
- Step 1: Write the proportion equation
351,689.52 : 527,534.94 = 85,450.26 : x - Step 2: Convert to fraction form
351,689.52/527,534.94 = 85,450.26/x - Step 3: Cross multiply
351,689.52x = 527,534.94 × 85,450.26 - Step 4: Simplify right side
351,689.52x = 45,077,997,782.08 - Step 5: Solve for x
x = 45,077,997,782.08/351,689.52 - Step 6: Final answer
x = 128,175.55
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1.5x scale
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.