Finding the Fourth Proportional to 238,090.68, 357,136.20 and 71,878.68
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Solution
The fourth proportional to 238,090.68, 357,136.20 and 71,878.68 is: 107,818.07
Step by Step Solution
- Step 1: Write the proportion equation
238,090.68 : 357,136.20 = 71,878.68 : x - Step 2: Convert to fraction form
238,090.68/357,136.20 = 71,878.68/x - Step 3: Cross multiply
238,090.68x = 357,136.20 × 71,878.68 - Step 4: Simplify right side
238,090.68x = 25,670,478,636.22 - Step 5: Solve for x
x = 25,670,478,636.22/238,090.68 - Step 6: Final answer
x = 107,818.07
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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.