Finding the Fourth Proportional to 210,366.69, 315,664.85 and 121,793.19
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Solution
The fourth proportional to 210,366.69, 315,664.85 and 121,793.19 is: 182,756.26
Step by Step Solution
- Step 1: Write the proportion equation
210,366.69 : 315,664.85 = 121,793.19 : x - Step 2: Convert to fraction form
210,366.69/315,664.85 = 121,793.19/x - Step 3: Cross multiply
210,366.69x = 315,664.85 × 121,793.19 - Step 4: Simplify right side
210,366.69x = 38,445,828,443.41 - Step 5: Solve for x
x = 38,445,828,443.41/210,366.69 - Step 6: Final answer
x = 182,756.26
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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.