Finding the Fourth Proportional to 339,291.36, 508,954.56 and 86,574.06
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Solution
The fourth proportional to 339,291.36, 508,954.56 and 86,574.06 is: 129,865.56
Step by Step Solution
- Step 1: Write the proportion equation
339,291.36 : 508,954.56 = 86,574.06 : x - Step 2: Convert to fraction form
339,291.36/508,954.56 = 86,574.06/x - Step 3: Cross multiply
339,291.36x = 508,954.56 × 86,574.06 - Step 4: Simplify right side
339,291.36x = 44,062,262,290.06 - Step 5: Solve for x
x = 44,062,262,290.06/339,291.36 - Step 6: Final answer
x = 129,865.56
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.