Finding the Fourth Proportional to 245,460.29, 338,733.06 and 138,028.03
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Solution
The fourth proportional to 245,460.29, 338,733.06 and 138,028.03 is: 190,477.48
Step by Step Solution
- Step 1: Write the proportion equation
245,460.29 : 338,733.06 = 138,028.03 : x - Step 2: Convert to fraction form
245,460.29/338,733.06 = 138,028.03/x - Step 3: Cross multiply
245,460.29x = 338,733.06 × 138,028.03 - Step 4: Simplify right side
245,460.29x = 46,754,655,603.23 - Step 5: Solve for x
x = 46,754,655,603.23/245,460.29 - Step 6: Final answer
x = 190,477.48
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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.