Finding the Fourth Proportional to 155,575.08, 214,629.72 and 115,387.74
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Solution
The fourth proportional to 155,575.08, 214,629.72 and 115,387.74 is: 159,187.69
Step by Step Solution
- Step 1: Write the proportion equation
155,575.08 : 214,629.72 = 115,387.74 : x - Step 2: Convert to fraction form
155,575.08/214,629.72 = 115,387.74/x - Step 3: Cross multiply
155,575.08x = 214,629.72 × 115,387.74 - Step 4: Simplify right side
155,575.08x = 24,765,638,327.63 - Step 5: Solve for x
x = 24,765,638,327.63/155,575.08 - Step 6: Final answer
x = 159,187.69
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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.