Finding the Fourth Proportional to 209,068.28, 288,504.98 and 118,422.42
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Solution
The fourth proportional to 209,068.28, 288,504.98 and 118,422.42 is: 163,417.70
Step by Step Solution
- Step 1: Write the proportion equation
209,068.28 : 288,504.98 = 118,422.42 : x - Step 2: Convert to fraction form
209,068.28/288,504.98 = 118,422.42/x - Step 3: Cross multiply
209,068.28x = 288,504.98 × 118,422.42 - Step 4: Simplify right side
209,068.28x = 34,165,457,913.65 - Step 5: Solve for x
x = 34,165,457,913.65/209,068.28 - Step 6: Final answer
x = 163,417.70
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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.