Finding the Fourth Proportional to 214,905.60, 322,358.40 and 121,593.60
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Solution
The fourth proportional to 214,905.60, 322,358.40 and 121,593.60 is: 182,390.40
Step by Step Solution
- Step 1: Write the proportion equation
214,905.60 : 322,358.40 = 121,593.60 : x - Step 2: Convert to fraction form
214,905.60/322,358.40 = 121,593.60/x - Step 3: Cross multiply
214,905.60x = 322,358.40 × 121,593.60 - Step 4: Simplify right side
214,905.60x = 39,196,718,346.24 - Step 5: Solve for x
x = 39,196,718,346.24/214,905.60 - Step 6: Final answer
x = 182,390.40
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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.