Finding the Fourth Proportional to 245,448.99, 338,721.62 and 138,018.08
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Solution
The fourth proportional to 245,448.99, 338,721.62 and 138,018.08 is: 190,466.08
Step by Step Solution
- Step 1: Write the proportion equation
245,448.99 : 338,721.62 = 138,018.08 : x - Step 2: Convert to fraction form
245,448.99/338,721.62 = 138,018.08/x - Step 3: Cross multiply
245,448.99x = 338,721.62 × 138,018.08 - Step 4: Simplify right side
245,448.99x = 46,749,707,646.89 - Step 5: Solve for x
x = 46,749,707,646.89/245,448.99 - Step 6: Final answer
x = 190,466.08
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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.