Finding the Fourth Proportional to 221,968.19, 306,346.08 and 125,191.90
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Solution
The fourth proportional to 221,968.19, 306,346.08 and 125,191.90 is: 172,781.73
Step by Step Solution
- Step 1: Write the proportion equation
221,968.19 : 306,346.08 = 125,191.90 : x - Step 2: Convert to fraction form
221,968.19/306,346.08 = 125,191.90/x - Step 3: Cross multiply
221,968.19x = 306,346.08 × 125,191.90 - Step 4: Simplify right side
221,968.19x = 38,352,047,812.75 - Step 5: Solve for x
x = 38,352,047,812.75/221,968.19 - Step 6: Final answer
x = 172,781.73
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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.