Finding the Fourth Proportional to 155,233.63, 214,224.32 and 87,246.63
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Solution
The fourth proportional to 155,233.63, 214,224.32 and 87,246.63 is: 120,401.42
Step by Step Solution
- Step 1: Write the proportion equation
155,233.63 : 214,224.32 = 87,246.63 : x - Step 2: Convert to fraction form
155,233.63/214,224.32 = 87,246.63/x - Step 3: Cross multiply
155,233.63x = 214,224.32 × 87,246.63 - Step 4: Simplify right side
155,233.63x = 18,690,349,984.04 - Step 5: Solve for x
x = 18,690,349,984.04/155,233.63 - Step 6: Final answer
x = 120,401.42
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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.