Finding the Fourth Proportional to 278,810.10, 417,922.74 and 136,459.08
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Solution
The fourth proportional to 278,810.10, 417,922.74 and 136,459.08 is: 204,545.50
Step by Step Solution
- Step 1: Write the proportion equation
278,810.10 : 417,922.74 = 136,459.08 : x - Step 2: Convert to fraction form
278,810.10/417,922.74 = 136,459.08/x - Step 3: Cross multiply
278,810.10x = 417,922.74 × 136,459.08 - Step 4: Simplify right side
278,810.10x = 57,029,352,611.48 - Step 5: Solve for x
x = 57,029,352,611.48/278,810.10 - Step 6: Final answer
x = 204,545.50
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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.