Finding the Fourth Proportional to 286,884.46, 395,888.07 and 157,814.75
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Solution
The fourth proportional to 286,884.46, 395,888.07 and 157,814.75 is: 217,777.49
Step by Step Solution
- Step 1: Write the proportion equation
286,884.46 : 395,888.07 = 157,814.75 : x - Step 2: Convert to fraction form
286,884.46/395,888.07 = 157,814.75/x - Step 3: Cross multiply
286,884.46x = 395,888.07 × 157,814.75 - Step 4: Simplify right side
286,884.46x = 62,476,976,795.03 - Step 5: Solve for x
x = 62,476,976,795.03/286,884.46 - Step 6: Final answer
x = 217,777.49
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.