Finding the Fourth Proportional to 458,243.14, 687,146.55 and 188,329.09
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Solution
The fourth proportional to 458,243.14, 687,146.55 and 188,329.09 is: 282,403.98
Step by Step Solution
- Step 1: Write the proportion equation
458,243.14 : 687,146.55 = 188,329.09 : x - Step 2: Convert to fraction form
458,243.14/687,146.55 = 188,329.09/x - Step 3: Cross multiply
458,243.14x = 687,146.55 × 188,329.09 - Step 4: Simplify right side
458,243.14x = 129,409,684,458.14 - Step 5: Solve for x
x = 129,409,684,458.14/458,243.14 - Step 6: Final answer
x = 282,403.98
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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.