Finding the Fourth Proportional to 135,579.81, 203,328.57 and 40,784.79
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Solution
The fourth proportional to 135,579.81, 203,328.57 and 40,784.79 is: 61,164.81
Step by Step Solution
- Step 1: Write the proportion equation
135,579.81 : 203,328.57 = 40,784.79 : x - Step 2: Convert to fraction form
135,579.81/203,328.57 = 40,784.79/x - Step 3: Cross multiply
135,579.81x = 203,328.57 × 40,784.79 - Step 4: Simplify right side
135,579.81x = 8,292,713,028.45 - Step 5: Solve for x
x = 8,292,713,028.45/135,579.81 - Step 6: Final answer
x = 61,164.81
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.