Finding the Fourth Proportional to 156,246.22, 215,620.08 and 84,626.30
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Solution
The fourth proportional to 156,246.22, 215,620.08 and 84,626.30 is: 116,784.45
Step by Step Solution
- Step 1: Write the proportion equation
156,246.22 : 215,620.08 = 84,626.30 : x - Step 2: Convert to fraction form
156,246.22/215,620.08 = 84,626.30/x - Step 3: Cross multiply
156,246.22x = 215,620.08 × 84,626.30 - Step 4: Simplify right side
156,246.22x = 18,247,129,576.10 - Step 5: Solve for x
x = 18,247,129,576.10/156,246.22 - Step 6: Final answer
x = 116,784.45
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.