Finding the Fourth Proportional to 282,933.27, 390,441.47 and 155,610.99
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Solution
The fourth proportional to 282,933.27, 390,441.47 and 155,610.99 is: 214,739.62
Step by Step Solution
- Step 1: Write the proportion equation
282,933.27 : 390,441.47 = 155,610.99 : x - Step 2: Convert to fraction form
282,933.27/390,441.47 = 155,610.99/x - Step 3: Cross multiply
282,933.27x = 390,441.47 × 155,610.99 - Step 4: Simplify right side
282,933.27x = 60,756,982,905.70 - Step 5: Solve for x
x = 60,756,982,905.70/282,933.27 - Step 6: Final answer
x = 214,739.62
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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.