Finding the Fourth Proportional to 401,743.63, 602,194.95 and 135,412.09
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Solution
The fourth proportional to 401,743.63, 602,194.95 and 135,412.09 is: 202,976.40
Step by Step Solution
- Step 1: Write the proportion equation
401,743.63 : 602,194.95 = 135,412.09 : x - Step 2: Convert to fraction form
401,743.63/602,194.95 = 135,412.09/x - Step 3: Cross multiply
401,743.63x = 602,194.95 × 135,412.09 - Step 4: Simplify right side
401,743.63x = 81,544,475,261.46 - Step 5: Solve for x
x = 81,544,475,261.46/401,743.63 - Step 6: Final answer
x = 202,976.40
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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.