Finding the Fourth Proportional to 156,280.48, 215,668.08 and 84,660.44
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Solution
The fourth proportional to 156,280.48, 215,668.08 and 84,660.44 is: 116,831.96
Step by Step Solution
- Step 1: Write the proportion equation
156,280.48 : 215,668.08 = 84,660.44 : x - Step 2: Convert to fraction form
156,280.48/215,668.08 = 84,660.44/x - Step 3: Cross multiply
156,280.48x = 215,668.08 × 84,660.44 - Step 4: Simplify right side
156,280.48x = 18,258,554,546.76 - Step 5: Solve for x
x = 18,258,554,546.76/156,280.48 - Step 6: Final answer
x = 116,831.96
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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.