Finding the Fourth Proportional to 438,221.44, 657,266.30 and 138,663.09
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Solution
The fourth proportional to 438,221.44, 657,266.30 and 138,663.09 is: 207,973.79
Step by Step Solution
- Step 1: Write the proportion equation
438,221.44 : 657,266.30 = 138,663.09 : x - Step 2: Convert to fraction form
438,221.44/657,266.30 = 138,663.09/x - Step 3: Cross multiply
438,221.44x = 657,266.30 × 138,663.09 - Step 4: Simplify right side
438,221.44x = 91,138,575,937.54 - Step 5: Solve for x
x = 91,138,575,937.54/438,221.44 - Step 6: Final answer
x = 207,973.79
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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.