Finding the Fourth Proportional to 210,543.41, 290,557.08 and 115,056.26
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Solution
The fourth proportional to 210,543.41, 290,557.08 and 115,056.26 is: 158,781.56
Step by Step Solution
- Step 1: Write the proportion equation
210,543.41 : 290,557.08 = 115,056.26 : x - Step 2: Convert to fraction form
210,543.41/290,557.08 = 115,056.26/x - Step 3: Cross multiply
210,543.41x = 290,557.08 × 115,056.26 - Step 4: Simplify right side
210,543.41x = 33,430,410,941.32 - Step 5: Solve for x
x = 33,430,410,941.32/210,543.41 - Step 6: Final answer
x = 158,781.56
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.