Finding the Fourth Proportional to 209,457.63, 314,235.04 and 69,207.75
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Solution
The fourth proportional to 209,457.63, 314,235.04 and 69,207.75 is: 103,827.68
Step by Step Solution
- Step 1: Write the proportion equation
209,457.63 : 314,235.04 = 69,207.75 : x - Step 2: Convert to fraction form
209,457.63/314,235.04 = 69,207.75/x - Step 3: Cross multiply
209,457.63x = 314,235.04 × 69,207.75 - Step 4: Simplify right side
209,457.63x = 21,747,500,089.56 - Step 5: Solve for x
x = 21,747,500,089.56/209,457.63 - Step 6: Final answer
x = 103,827.68
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1.5x scale
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.