Finding the Fourth Proportional to 412,058.13, 618,129.99 and 112,538.65
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Solution
The fourth proportional to 412,058.13, 618,129.99 and 112,538.65 is: 168,819.66
Step by Step Solution
- Step 1: Write the proportion equation
412,058.13 : 618,129.99 = 112,538.65 : x - Step 2: Convert to fraction form
412,058.13/618,129.99 = 112,538.65/x - Step 3: Cross multiply
412,058.13x = 618,129.99 × 112,538.65 - Step 4: Simplify right side
412,058.13x = 69,563,514,599.11 - Step 5: Solve for x
x = 69,563,514,599.11/412,058.13 - Step 6: Final answer
x = 168,819.66
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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.