Finding the Fourth Proportional to 221,914.53, 306,235.94 and 125,117.55
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Solution
The fourth proportional to 221,914.53, 306,235.94 and 125,117.55 is: 172,658.77
Step by Step Solution
- Step 1: Write the proportion equation
221,914.53 : 306,235.94 = 125,117.55 : x - Step 2: Convert to fraction form
221,914.53/306,235.94 = 125,117.55/x - Step 3: Cross multiply
221,914.53x = 306,235.94 × 125,117.55 - Step 4: Simplify right side
221,914.53x = 38,315,489,909.16 - Step 5: Solve for x
x = 38,315,489,909.16/221,914.53 - Step 6: Final answer
x = 172,658.77
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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.