Finding the Fourth Proportional to 423,983.10, 635,579.37 and 143,304.06
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Solution
The fourth proportional to 423,983.10, 635,579.37 and 143,304.06 is: 214,822.49
Step by Step Solution
- Step 1: Write the proportion equation
423,983.10 : 635,579.37 = 143,304.06 : x - Step 2: Convert to fraction form
423,983.10/635,579.37 = 143,304.06/x - Step 3: Cross multiply
423,983.10x = 635,579.37 × 143,304.06 - Step 4: Simplify right side
423,983.10x = 91,081,104,173.24 - Step 5: Solve for x
x = 91,081,104,173.24/423,983.10 - Step 6: Final answer
x = 214,822.49
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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.