Finding the Fourth Proportional to 420,224.11, 579,936.68 and 238,952.91
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Solution
The fourth proportional to 420,224.11, 579,936.68 and 238,952.91 is: 329,770.60
Step by Step Solution
- Step 1: Write the proportion equation
420,224.11 : 579,936.68 = 238,952.91 : x - Step 2: Convert to fraction form
420,224.11/579,936.68 = 238,952.91/x - Step 3: Cross multiply
420,224.11x = 579,936.68 × 238,952.91 - Step 4: Simplify right side
420,224.11x = 138,577,557,301.74 - Step 5: Solve for x
x = 138,577,557,301.74/420,224.11 - Step 6: Final answer
x = 329,770.60
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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.