Finding the Fourth Proportional to 423,657.81, 635,486.36 and 108,114.72
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Solution
The fourth proportional to 423,657.81, 635,486.36 and 108,114.72 is: 162,171.99
Step by Step Solution
- Step 1: Write the proportion equation
423,657.81 : 635,486.36 = 108,114.72 : x - Step 2: Convert to fraction form
423,657.81/635,486.36 = 108,114.72/x - Step 3: Cross multiply
423,657.81x = 635,486.36 × 108,114.72 - Step 4: Simplify right side
423,657.81x = 68,705,429,334.65 - Step 5: Solve for x
x = 68,705,429,334.65/423,657.81 - Step 6: Final answer
x = 162,171.99
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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.