Finding the Fourth Proportional to 438,446.04, 657,691.74 and 138,958.44
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Solution
The fourth proportional to 438,446.04, 657,691.74 and 138,958.44 is: 208,444.85
Step by Step Solution
- Step 1: Write the proportion equation
438,446.04 : 657,691.74 = 138,958.44 : x - Step 2: Convert to fraction form
438,446.04/657,691.74 = 138,958.44/x - Step 3: Cross multiply
438,446.04x = 657,691.74 × 138,958.44 - Step 4: Simplify right side
438,446.04x = 91,391,818,191.29 - Step 5: Solve for x
x = 91,391,818,191.29/438,446.04 - Step 6: Final answer
x = 208,444.85
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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.