Finding the Fourth Proportional to 420,223.68, 579,936.08 and 238,952.48
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Solution
The fourth proportional to 420,223.68, 579,936.08 and 238,952.48 is: 329,769.99
Step by Step Solution
- Step 1: Write the proportion equation
420,223.68 : 579,936.08 = 238,952.48 : x - Step 2: Convert to fraction form
420,223.68/579,936.08 = 238,952.48/x - Step 3: Cross multiply
420,223.68x = 579,936.08 × 238,952.48 - Step 4: Simplify right side
420,223.68x = 138,577,160,463.04 - Step 5: Solve for x
x = 138,577,160,463.04/420,223.68 - Step 6: Final answer
x = 329,769.99
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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.