Finding the Fourth Proportional to 438,318.06, 657,542.81 and 153,958.47
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Solution
The fourth proportional to 438,318.06, 657,542.81 and 153,958.47 is: 230,960.79
Step by Step Solution
- Step 1: Write the proportion equation
438,318.06 : 657,542.81 = 153,958.47 : x - Step 2: Convert to fraction form
438,318.06/657,542.81 = 153,958.47/x - Step 3: Cross multiply
438,318.06x = 657,542.81 × 153,958.47 - Step 4: Simplify right side
438,318.06x = 101,234,284,987.10 - Step 5: Solve for x
x = 101,234,284,987.10/438,318.06 - Step 6: Final answer
x = 230,960.79
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.