Finding the Fourth Proportional to 423,980.10, 635,574.87 and 143,301.06
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Solution
The fourth proportional to 423,980.10, 635,574.87 and 143,301.06 is: 214,817.99
Step by Step Solution
- Step 1: Write the proportion equation
423,980.10 : 635,574.87 = 143,301.06 : x - Step 2: Convert to fraction form
423,980.10/635,574.87 = 143,301.06/x - Step 3: Cross multiply
423,980.10x = 635,574.87 × 143,301.06 - Step 4: Simplify right side
423,980.10x = 91,078,552,580.36 - Step 5: Solve for x
x = 91,078,552,580.36/423,980.10 - Step 6: Final answer
x = 214,817.99
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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.