Finding the Fourth Proportional to 265,881.09, 398,898.86 and 85,962.68
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Solution
The fourth proportional to 265,881.09, 398,898.86 and 85,962.68 is: 128,968.99
Step by Step Solution
- Step 1: Write the proportion equation
265,881.09 : 398,898.86 = 85,962.68 : x - Step 2: Convert to fraction form
265,881.09/398,898.86 = 85,962.68/x - Step 3: Cross multiply
265,881.09x = 398,898.86 × 85,962.68 - Step 4: Simplify right side
265,881.09x = 34,290,415,054.54 - Step 5: Solve for x
x = 34,290,415,054.54/265,881.09 - Step 6: Final answer
x = 128,968.99
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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.