Finding the Fourth Proportional to 439,023.12, 605,851.92 and 237,819.12
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Solution
The fourth proportional to 439,023.12, 605,851.92 and 237,819.12 is: 328,190.39
Step by Step Solution
- Step 1: Write the proportion equation
439,023.12 : 605,851.92 = 237,819.12 : x - Step 2: Convert to fraction form
439,023.12/605,851.92 = 237,819.12/x - Step 3: Cross multiply
439,023.12x = 605,851.92 × 237,819.12 - Step 4: Simplify right side
439,023.12x = 144,083,170,464.71 - Step 5: Solve for x
x = 144,083,170,464.71/439,023.12 - Step 6: Final answer
x = 328,190.39
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.