Finding the Fourth Proportional to 290,051.08, 435,088.41 and 138,170.08
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Solution
The fourth proportional to 290,051.08, 435,088.41 and 138,170.08 is: 207,260.74
Step by Step Solution
- Step 1: Write the proportion equation
290,051.08 : 435,088.41 = 138,170.08 : x - Step 2: Convert to fraction form
290,051.08/435,088.41 = 138,170.08/x - Step 3: Cross multiply
290,051.08x = 435,088.41 × 138,170.08 - Step 4: Simplify right side
290,051.08x = 60,116,200,416.77 - Step 5: Solve for x
x = 60,116,200,416.77/290,051.08 - Step 6: Final answer
x = 207,260.74
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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.