Finding the Fourth Proportional to 221,419.16, 305,565.18 and 125,939.60
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Solution
The fourth proportional to 221,419.16, 305,565.18 and 125,939.60 is: 173,800.48
Step by Step Solution
- Step 1: Write the proportion equation
221,419.16 : 305,565.18 = 125,939.60 : x - Step 2: Convert to fraction form
221,419.16/305,565.18 = 125,939.60/x - Step 3: Cross multiply
221,419.16x = 305,565.18 × 125,939.60 - Step 4: Simplify right side
221,419.16x = 38,482,756,543.13 - Step 5: Solve for x
x = 38,482,756,543.13/221,419.16 - Step 6: Final answer
x = 173,800.48
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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.