Finding the Fourth Proportional to 282,208.58, 389,448.09 and 153,147.05
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Solution
The fourth proportional to 282,208.58, 389,448.09 and 153,147.05 is: 211,343.07
Step by Step Solution
- Step 1: Write the proportion equation
282,208.58 : 389,448.09 = 153,147.05 : x - Step 2: Convert to fraction form
282,208.58/389,448.09 = 153,147.05/x - Step 3: Cross multiply
282,208.58x = 389,448.09 × 153,147.05 - Step 4: Simplify right side
282,208.58x = 59,642,825,345.90 - Step 5: Solve for x
x = 59,642,825,345.90/282,208.58 - Step 6: Final answer
x = 211,343.07
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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.