Finding the Fourth Proportional to 221,239.08, 305,310.60 and 120,637.08
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Solution
The fourth proportional to 221,239.08, 305,310.60 and 120,637.08 is: 166,479.54
Step by Step Solution
- Step 1: Write the proportion equation
221,239.08 : 305,310.60 = 120,637.08 : x - Step 2: Convert to fraction form
221,239.08/305,310.60 = 120,637.08/x - Step 3: Cross multiply
221,239.08x = 305,310.60 × 120,637.08 - Step 4: Simplify right side
221,239.08x = 36,831,779,277.05 - Step 5: Solve for x
x = 36,831,779,277.05/221,239.08 - Step 6: Final answer
x = 166,479.54
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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.