Finding the Fourth Proportional to 209,437.11, 314,148.99 and 67,281.81
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Solution
The fourth proportional to 209,437.11, 314,148.99 and 67,281.81 is: 100,920.57
Step by Step Solution
- Step 1: Write the proportion equation
209,437.11 : 314,148.99 = 67,281.81 : x - Step 2: Convert to fraction form
209,437.11/314,148.99 = 67,281.81/x - Step 3: Cross multiply
209,437.11x = 314,148.99 × 67,281.81 - Step 4: Simplify right side
209,437.11x = 21,136,512,656.87 - Step 5: Solve for x
x = 21,136,512,656.87/209,437.11 - Step 6: Final answer
x = 100,920.57
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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.