Finding the Fourth Proportional to 427,145.12, 589,431.36 and 236,132.72
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Solution
The fourth proportional to 427,145.12, 589,431.36 and 236,132.72 is: 325,847.17
Step by Step Solution
- Step 1: Write the proportion equation
427,145.12 : 589,431.36 = 236,132.72 : x - Step 2: Convert to fraction form
427,145.12/589,431.36 = 236,132.72/x - Step 3: Cross multiply
427,145.12x = 589,431.36 × 236,132.72 - Step 4: Simplify right side
427,145.12x = 139,184,030,290.10 - Step 5: Solve for x
x = 139,184,030,290.10/427,145.12 - Step 6: Final answer
x = 325,847.17
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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.