Finding the Fourth Proportional to 216,907.08, 299,323.08 and 121,423.20
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Solution
The fourth proportional to 216,907.08, 299,323.08 and 121,423.20 is: 167,559.15
Step by Step Solution
- Step 1: Write the proportion equation
216,907.08 : 299,323.08 = 121,423.20 : x - Step 2: Convert to fraction form
216,907.08/299,323.08 = 121,423.20/x - Step 3: Cross multiply
216,907.08x = 299,323.08 × 121,423.20 - Step 4: Simplify right side
216,907.08x = 36,344,766,207.46 - Step 5: Solve for x
x = 36,344,766,207.46/216,907.08 - Step 6: Final answer
x = 167,559.15
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1.5x scale
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.