Finding the Fourth Proportional to 221,954.40, 306,278.55 and 125,152.79
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Solution
The fourth proportional to 221,954.40, 306,278.55 and 125,152.79 is: 172,700.40
Step by Step Solution
- Step 1: Write the proportion equation
221,954.40 : 306,278.55 = 125,152.79 : x - Step 2: Convert to fraction form
221,954.40/306,278.55 = 125,152.79/x - Step 3: Cross multiply
221,954.40x = 306,278.55 × 125,152.79 - Step 4: Simplify right side
221,954.40x = 38,331,613,518.26 - Step 5: Solve for x
x = 38,331,613,518.26/221,954.40 - Step 6: Final answer
x = 172,700.40
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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.