Finding the Fourth Proportional to 236,947.62, 326,987.72 and 129,518.07
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Solution
The fourth proportional to 236,947.62, 326,987.72 and 129,518.07 is: 178,734.94
Step by Step Solution
- Step 1: Write the proportion equation
236,947.62 : 326,987.72 = 129,518.07 : x - Step 2: Convert to fraction form
236,947.62/326,987.72 = 129,518.07/x - Step 3: Cross multiply
236,947.62x = 326,987.72 × 129,518.07 - Step 4: Simplify right side
236,947.62x = 42,350,818,408.10 - Step 5: Solve for x
x = 42,350,818,408.10/236,947.62 - Step 6: Final answer
x = 178,734.94
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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.