Finding the Fourth Proportional to 286,705.08, 430,109.47 and 118,131.63
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Solution
The fourth proportional to 286,705.08, 430,109.47 and 118,131.63 is: 177,218.80
Step by Step Solution
- Step 1: Write the proportion equation
286,705.08 : 430,109.47 = 118,131.63 : x - Step 2: Convert to fraction form
286,705.08/430,109.47 = 118,131.63/x - Step 3: Cross multiply
286,705.08x = 430,109.47 × 118,131.63 - Step 4: Simplify right side
286,705.08x = 50,809,530,618.99 - Step 5: Solve for x
x = 50,809,530,618.99/286,705.08 - Step 6: Final answer
x = 177,218.80
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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.