Finding the Fourth Proportional to 278,313.22, 417,137.68 and 151,985.26
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Solution
The fourth proportional to 278,313.22, 417,137.68 and 151,985.26 is: 227,796.50
Step by Step Solution
- Step 1: Write the proportion equation
278,313.22 : 417,137.68 = 151,985.26 : x - Step 2: Convert to fraction form
278,313.22/417,137.68 = 151,985.26/x - Step 3: Cross multiply
278,313.22x = 417,137.68 × 151,985.26 - Step 4: Simplify right side
278,313.22x = 63,398,778,750.60 - Step 5: Solve for x
x = 63,398,778,750.60/278,313.22 - Step 6: Final answer
x = 227,796.50
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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.