Finding the Fourth Proportional to 420,277.03, 579,958.67 and 239,033.05
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Solution
The fourth proportional to 420,277.03, 579,958.67 and 239,033.05 is: 329,852.17
Step by Step Solution
- Step 1: Write the proportion equation
420,277.03 : 579,958.67 = 239,033.05 : x - Step 2: Convert to fraction form
420,277.03/579,958.67 = 239,033.05/x - Step 3: Cross multiply
420,277.03x = 579,958.67 × 239,033.05 - Step 4: Simplify right side
420,277.03x = 138,629,289,764.04 - Step 5: Solve for x
x = 138,629,289,764.04/420,277.03 - Step 6: Final answer
x = 329,852.17
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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.